HS9/1554/2 Walter, Johannes Albertus.
@ WEES, Johannes.
Name: WALTER, Johannes Albertus.
Born: 07-10-1922, Djombang (Java).
Occupation: With Dutch Airforce.
Father: Th. A.G. Walter, at Djombang
Mother: J.F. van Stokkum, at Djomstanstraat 32, Djombang.
Remarks 12-06-1943: To be trained as agent in the field commencing 15-06-1943.
S.D. signed: 01-08-1943.
D/CE-M.1 to D/CE-T 11-06-1943.
No RVPS report available. This man came from the 33 Air Force.
SAB report STS-7 07/20-06-1943.
Intelligence Rating: 8.
Morse - GOOD.
Remarks: Recommended as WT operator. Morse outstanding. Would be at his best with somebody who is a high class leader. he has high intelligence and instructional ability which should be used.
L/Cpl. Springborn STS-21 24-06-1943.
Very reticent and definitely loyal to the Allied cause. Very moderate with drink and does not talk about women at all. he is very "Alert" and appears to be the type to work alone. The only indication of past history is that he has worked as a Wireless operator for Coastal Command.
Is still very keen on his work and gets on very well with the rest of the party but does not talk much about himself or his past activities. Is very sensible and sharp witted. Has a good sense of humour. he is very keen on wireless and spends a great deal of his spare time practising. Seems very keen to use his capabilities in the Dutch East Indies. He left school at the age of 17 and went to work as a fertiliser mixer on a Quinine Plantation on Java, the island where he resided. He evidently worked for the same firm a number of years and reached a position of some responsibility. he bought a house in Java for which he paid 1200 Guilders and owned a Lincoln Zephir motor car. He had three dogs, 2 Spaniels and an Alsation. He left Java on the day that the Japanese arrived. He has served for about two years with Coastal Command as Wireless telegraphist.
Is very reticent and security minded. He is very keen on the work and gives an impression of efficiency =. he appears to be a half-caste Javanese and although his companions pull his leg about this, he takes it all in good part and is evidently quite proud of his ancestry. he is quick witted and has a very good sense of humour. he strikes me as a person with the qualities of a leader.
Sgt. French 16-07-1943.
This student has spent all his life in Java, D.E.I. where he is used to work on a plantation. Upon arrival in England he joined the Air Force and became a Air-Gunner. He is intelligent determined and mentally very alert. He is also a good mixer, and is well liked by the others. His habits are moderate, he does not indulge in drink or women as far as I can gather so far and usually likes to read quietly on his time off.
This student is determined and very keen. He is quiet by nature, but can become quite heated during an argument. His security mindedness is good and he also realises the importance of it. His character shows certain signs of selfishness in such a way that if displeased with things, he becomes sulky and is inclined to become disinterested. He is, however, very resourceful and mentally alert.
As mentioned in my former reports this student shows signs of selfishness, usually l..es to find his own way. This is noticeable when going out in the evenings with the whole party, he often goes to a different public house or goes for a walk by himself. he is easily annoyed and likes often to sit and sulk. He is a quiet person, well educated and mentally alert, resourceful and determined. His habits are temperate. from a security point of view his behaviour leaves nothing to be desired.
NL to MT 09-08-1943.
Confirming that arrangements have been made for this student to commence training at STS-52 on 16-08-1943.
D/CE-M.1 to Capt. Clitheroe 25-08-1943.
The information about his proposed marriage has been passed on to the Country Section and they will get the girl put through the cards.
D/CE-M.1 to N L 03-09-1943.
The following are particulars of M-6's fiancee Miss Margaret Hargreaves, born 28-08-1923, British subject, born at 49 Drury Lane, Chatterton, Manchester.
Cpl. Brazier 03-09-1943.
This student has spent many years in the Dutch East Indies and prefers to live there to that of Europe. At present he is very anxious to get his marriage finally settled; (he met his fiancee whilst on leave in Blackpool). very sensible and level-headed, he likes to spend his evenings playing bridge and gramaphone records in the Recreation room.
He is practical, shrewd, cunning and full of common sense. He is not interested in theory, nor in matters not directly connected with his mission. Where, however, he thinks high interests are concerned, he shows considerable intelligence. he has plenty of imagination. he is keen, worked hard and showed initiative. he has a strong character and is determined and reliable. He has his own pint of view and does not easily change it. He is inclined to be obstinate but is not unreasonable. his appearance and manner on first acquaintance are rather unprepossessing. Nevertheless, he has in fact a pleasant personality and is a convincing talker. He should make a capable WT operator. he also has some powers of leadership and should inspire confidence. He would be capable of acting as the chief of a small group.
Codes: Routine practice only required.
STS-51 Parachute Training 01/06-08-1943.
One of party of four. All were very fit and all keen to do their work well. Their standard in training was good and each one jumped well, making three descents by day and one by night. Their reactions to jumping were normal, and they should always jump well. THREE DESCENTS 1st CLASS.
Remarks: The behaviour of all the students was very good. They were quiet and efficient in the work, making the actual descents in a cool manner. As far as could be judged they were moderate in their habits when free.
OWN NAME TRAINING NAME NAME IN THE FIELD
Johannes Albertus WALTER Johannes Albertus WEES Johannes Albertus KAMP (Dutch)
CODE NAME OPERATION
ORDERS for: WEES TOP SECRET Copy No. I
The RAAD VAN VERZET is an organisation which has led an active part in underground activities in HOLLAND. Some of its cells have been penetrated from time to time, but it is believed that the main or head executive is still sound. A mission was sent to the field on 1st April 1944 (Celosse & Co) to approach the RVV and to give them the Allied Commander's directives for future action. The RVV being very security minded, would not interview our men until they had satisfied themselves that all was well. When they were eventually received by the RVV it was too late because, contrary to instructions, they had contacted several organisations, were known to the Gestapo and were arrested between 17th and 20th May. The RVV have reported the arrests and have asked for new men.
a. Operation Name.
The name of your operation is BOWLS and you will be known by this name at the station of your departure. You will never use this name in the field.
b. Code Names in the Field.
I. Your field name will be ALBERTUS. This is the only name you or anyone else should use in messages from the field and
it is the name by which you will be known by other members of the organisation.
II. The operational name of VORSTMAN is RACQUETS and his name in the field and in telegrams is EITJES.
III. The operational name of KRANT is FIVES and his name in the field and in telegrams is BAREND.
IV. The operational name of BOREL is HALMA and his name in the field and in telegrams is HUBERTUS.
You will establish contact with the RVV through the address given in Annexe I. You will inform them that your mission is to act as WT operator for their sabotage organisation for all their communications with us. They must not involve you in their other activities and they must only use the special code on the One-Time-Pad which you will hand to them and teach them how to use it.
You will always observe the security instructions they give you, and in no circumstances reveal to anybody other than your contact that you have come from this country. Your cover can be that of "onderduiker" but nothing more. You will never make contacts with other organisations or persons unless these are arranged by the RVV. The men who went on 1st April made these mistakes, hence their arrest. You must be patient because the RVV will not tolerate mistakes through imprudence to the detriment of probably hundreds of other men.
You must insist that the RVV arrange for your safehouse in HOLLAND and houses from which you may transmit. The RVV are at present sending their messages through a separate organisation called "The Radiodienst", but you must inform the RVV that all their messages relating to active resistance and sabotage must come through your channels and not those of the Radiodienst. This is important in order not to involve the various organisations concerned.
You will take with you an extra WT plan and a small code for the use of a new operator if the RVV or you can find a man who is considered 100% safe. You may train him and advise us when he is ready to operate.
On the first favourable night in the July moon period you, EITJES, BAREND and HUBERTUS will be dropped together by parachute in HOLLAND at a point which will be explained to you prior to your departure.
Immediately upon landing you will bury or destroy your parachute equipment. You will bury your WT equipment separately and in such a manner that a third person would be able to find it if it is considered not safe for you to go there personally.
a. Contact Address. As explained in Annexe I.
This must be arranged for you by the RVV and you should not be housed with EITJES, BAREND or HUBERTUS. You should never communicate with each other unless this is done by a cut-out.
You will carry with you the sum of Hfl. 5000,- for your own personal use; also Bfrs. 2500,- and Ffrs. 2500,- should you require these in case of emergency. You will have with you a spare One-Time-Pad and this you will hand to a member of the RVV when he asks for it, not before.
a. Package - Equipment - Camouflage
I. Your personal baggage will consist of one brown parcel.
II. You will have in your pocket the sum of Hfl. 150,- in small money for your immediate needs.
III. The reminder of your personal money is camouflaged as follows:
Hfl. 4850,- in a money belt.
Bfrs. 2500,- ditto
Ffrs. 2500,- ditto
IV. EITJES and BAREND will both be carrying Hfl. 25.000,- each for the use of the RVV.
V. EITJES, BAREND and HUBERTUS will each have Hfl. 5000,- Bfrs. 2500,- and Ffrs. 2500,- on their person for their own use.
VI. Your code (One-Time-Pad, etc), the spare One-Time-Pad, the spare WT plan and small code for the RVV will be camouflaged as per Annexe II.
VII. In your suitcase there is a white envelope marked with a circle; you will hand this to BAREND as soon as convenient. At the same time you will give him a silent .32 with 50 rounds of ammunition which are also in your suitcase for him.
b. Cover Story. see Annexe III.
c. Clothing. You will receive these in accordance with your requirements.
You have been interviewed as to your requirements for the field and you will receive these and your parachute equipment at the station of departure. See Annexe IV.
e. Documents. You have been issued with a Dutch identity card.
f. Return to this country. You have been interviewed by an officer with regard to routes and have been given all the
necessary information. See Annexe V.
a. In the field.
You will use the various methodes you have been taught: postboxes, cut-outs, etc. You will make your own arrangements with the RVV as how to you deliver and receive messages from them.
You yourself, will only send us messages relating to technical matters, and once a week a short message giving us the broadcast numbers of messages received the previous week.
You will keep your skeds as per WT plan and never ask for more contacts than is necessary. If you feel that you are receiving too much traffic or that your outgoing messages are too long, you will inform the RVV immediately so that they can reduce the amount of traffic or length of messages.
You wil change your houses of transmission as frequently as possible and always destroy immediately that part of your One-Time-Pad which has been used for a previous message. If you do this without exception, the Gestapo will never be able to decode your past messages or be able to prove what your real security check is. Records of messages exchanged with us should not be kept.
In all your messages to the RVV, EITJES and BAREND we shall use their prefixes: see Annexe VI. they will also use their prefixes in their messages to us.
c. Codes. In Annexe VII you will find a copy of your reserve poems which you must memorise. You will also receive microprints of your special code which you will take with you.
d. Plan. You will take with you a microprint of your WT plan as per Annexe VIII.
e. Broadcasts. You will also take a microprint of your broadcast plan as per Annexe IX.
f. Identity checks. if we have reason to suppose that you have been arrested and that the Germans are working your transmitter, we shall ask you an "innocent" question. If you are safe you will give the correct answer, but if we do not receive the correct answer we shall presume that you are in enemy hands. see Annexe X.
g. Innocent letters.
I. Code. You will use the convention which you have been taught See Annexe XI.
II. Address. You will send your Innocent Letters to an address as per Annexe V.
III. Signatures. You will sign your Innocent Letters ALBERTUS; if we write to you we shall sign PAUL.
h. Safehouses (Emergency Address). It is important that we should remain in contact with you, and if you find that you cannot give us an address before you leave for the field. You should let us have one at the first possible opportunity by WT. For password and reply, see Annexe V.
6. FINANCIAL ARRANGEMENTS
Your rank on leaving this country will be 2/Lt. and your salary will be credited to your account with the Dutch Government.
LONDON, 27th June, 1944.
OUTLINE OF INSTRUCTIONS FOR AGENTS.
1. Every possible opportunity of educating the local population for the purpose of liberation and stimulating their determination to be rid of their oppressors should be seized.
2. Your help is asked along the lines shown below but without interfering with your main tasks. Remember in carrying out any of these activities it is of the utmost importance that neither your specific mission nor any local resistance organisation should be jeopardized.
3. Those who are not specialists acting on specific instructions, must conserve their energies and their organisations for the day when the Supreme Allied Commander will tell them when and how in the best interests of themselves and of the military situation they should act. That order will be given.
4. Seek rather to recruit and train trustworthy collegues to carry out the work involved.
The ENEMY's chief weapon against civilians, as in 1940, will be rumour and false news.
Therefore try to arrange now that the facts about any landing will reach the people through persons they know they can trust. See to it that the people ate constantly warned and reminded about the danger of acting upon news from any other source.
I. organise regular listening service to Allied broadcast;
II. Publish this news as regular as possible.
III. Even if the news can not be printed or duplicated it can be passed by word of mouth. Appoint trustworthy people
to serve as channels for news and to stamp out rumours.
6. INSTRUCTIONS TO THE CIVIL POPULATION FROM ALLIED HIGH COMMAND.
A major handicap to the ENEMY during invasion is a civilian population working against the GERMANS in full accordance with instructions issued from LONDON by radio. Therefore, see to it that instructions intended for the civilian population reach them without delay, through an organised news service.
7. Apart from any specific instructions you now have or general ones to be issued, attention to any or all of the following operations will be of vital importance in the period of liberation:
A. SAFEGUARD LOYAL SPECIALIST OR KEY SERVICE PERSONNEL.
Register, collect, hide and safeguard:
I. Radio announcers and transmission engineers;
II. Press editors and newspaper printing specialists;
III. Morse operators;
IV. Gas, electricity, water, sewage, railway, tramway, telephone, factory and mine engineers;
V. Dockers, road menders M.T. mechanics.
The absence of these specialists will weaken the ENEMY while their assistance when the liberating armies reach the district will be invaluable.
B. OBSTRUCT ENEMY AND QUISLING ADMINISTRATION.
a. Exert pressure on traitors in possession of key information or administrative key positions:
I. To disclose knowledge of ENEMY counter-invasion plans, including police arrangements, movements or concentrations of troops or war materials, food stocks, etc.
II. To delay and obstruct administrative machinery
b. You can undermine the position of the GERMANS and collaborators in various ways:
I. No chance should be missed of making mischief between the GERMANS and collaborators by spreading false trails which may lead to denunciations and recriminations
II. Attempts should be made to build up the hope among minor collaborators and GERMANS that by handing over the important collaborators and GERMANS to the Allies or the liberated local authorities they may escape punishment and that in the meantime they can help insure their positions by surreptitiously aiding resistance.
III. Spread the slogan that he who does not now actively prove himself on the side of the Allies will afterwards be assumed to have been against them.
c. You should keep careful watch on all GERMAN preparations, particularly for demolitions and on troop movements and be in a position to inform the Allied forces.
d. In order to prevent destruction of food and The GERMANS seizing and carrying it away in their retreat, supplies of food must be scattered as much as possible in smaal quantities and not allowed to accumulate in large dumps.
C. UNDERMINE ENEMY TROOP MORALE.
Use any means to depress and unnerve ENEMT troops such as:
I. Circulation of news about ALLIED bombing operations against GERMAN towns;
II. Circulation of news about military events with emphasis on details of GERMAN losses in any theatre of war;
III. Irritation en exasperation of local GERMAN troops with a view to producing bad discipline.
15th October, 1944.
On the night of July 10th to 11th, a British plane was shot down whilst over MAKKUM, province of FRIESLAND. The plane caught fire in the air and feel into the YSSELMEER, 3 km west of KORNWERDERZAND and sank in 7 meters of water. The time of the incident must have been about 01.30 a.m. as watches found on the dead bodies had stopped at this time. It is possible that some of the personnel were able to escape by parachute, but nothing is known definitely. Between July 13th and 27th five of the bodies of personnel were either recovered or washed ashore and buried in MAKKUM.
13th July, found by fishermen in the plane and brought to MAKKUM, (here follows an extract from an official report): Johannes Albertus KAMP (Walter), date of birth 7th October, 1922. Place of birth: DJOMBANG (Java), died 15th July on the YSSELMEER. Home address: Valeriusstraat 22, AMSTERDAM. Profession: clerk, buried on 15th July at MAKKUM. Position of grave: Nr. 33 Rij. O. The number of the deceased identity card is 12812. He died through a shot in his head.
16th July, brought in by fishermen, (here follows an extract from an official report); Pieter NIJHOFF (Kwint), born 29th July, 1920 at AMSTERDAM, died 15th July 1944. Address: Prinsengracht 413B. Occupation: Ambtenaar. The number of his Identity Card is: A/35/32314. He died through a broken back. Buried at MAKKUM on 17th July 1944. Position of grave: No. 35 Rij O. Upon the person of NIJHOFF, the Germans found a belt containing three pockets in which was 50.000 Guilders in bank notes of 100 Guilders as well as some Belgian money. There were also papers, but it is not known what these were. On KAMP (Walter) was a smaller belt containing money as well as a small tightly soldered box which seemed to contain type written sheets of paper. The clothing of the two men was placed into sacks and taken away by the Germans. The Sicherheitsdienst were overjoyed when they saw the contents of the soldered box.
On July 24th, the Germans brought ashore the body of an unknown person. It was not possible to obtain any information as to who this person was, with the exception that he was not young, but very well built. He was in possession of a brown briefcase in which was a large amount of money.
An official announcement over the finding and burying of two of the crew was made by the Germans:
1. Dennis James WITHERS, Sgt. in the RAF. Died 15th July 1944. Official No. 1737508. Presumably English. Buried on
19th July at MAKKUM. Position of the grave: No. 34. Rij O.
2. K.R. BUNNEY. Officer in the RAF. Further particulars unknown.
According to reports made by the Germans, there are still two persons missing from the plane, therefore the Sicherheitsdienst have made arrangements for the plane to be lifted and examined. According to a person who had seen the body of KAMP (Walter), it is thought he may have been a half-cast. It is thought that the unknown member of the crew had tried to save himself by swimming as he had practically no clothes on and the brief case was tied to him by a scarf.
According to the report to the identity cards of the victims, the official report contained the following comments:
1. The numbers do not correspond with the first letter of the name. I.e. A35/02812 and 03214 should be only for a name beginning with A.
2. A man who is born in 1922 should not be working in HOLLAND as men of that age have been sent to GERMANY to work for the freeing of Europe.
3. DJOMBANG (Java) is not correct. It should be DJOMBANG, and after the printed letters "Land" on the Identity Card Nederlandsch IndiŽ.
4. Ambtenaar is not the correct way to write a profession. It should be Ambtenaar PTT, or Ambtenaar Dept. H.
5. It is 'Prinsengracht' and there are no numbers with A,B,C etc. It is more usual for "1, 2", etc.
For the information of those in London, all details of the filling in of Identity Cards are published in Besluit Persoonsbewijzen, in 1941 and there must be many Engelandvaarders that could give reliable information for filling in these cards.
MARECHAUSSEE GEWEST GRONINGEN afschrift.
Post MAKKUM doorslag Scheepvaart A. Owrm.
Telefoon verbalisanten: Makkum 32.
PROCES VERBAAL van het vinden van het in het IJsselmeer aangetroffen lijk van een lid (Vermoedelijk leerling vlieger) van de Royal Air Force genaamd Johannes Albertus Kamp, gevonden op 14 July 1944 onder behoor van KORNWERDERZAND, gemeente Wonseradeel.
Op 14 July 1900 vier en veertig, omstreeks 15 uur, werd mij ANDRIES KUIPERS, Hoofdwachtmeester Postcommandant der Marechaussee te MAKKUM, mededeeling gedaan, dat door visschers uit het IJsselmeer onder behoor van het dorp KORNWERDERZAND, gemmente Woenseradeel, het lijk was aangevoerd van een Engelschen militair.
In verband met het voorstaande heb ik onmiddellijk een onderzoek ingesteld en hoord ik den visscher Eelke van der Laan, oud 27 jaren, wonende te Makkum, die verklaarde: "Bij mij aan boord bevind zich het lijk van een Engelschen militair. het lijk os op 14 July 1944 omstreeks 12 uur, door mij drijvend gevonden in het IJsselmeer nabij Kornwerderzand". Ik, verbalisant, trof inderdaad aan boord aan het lijk van een in vlieger-uitrusting gekleeden militair. De uitrusting bleek van Engelsch maaksel te zijn. Onder zijn militaire overall droeg de man bruine burgerkleeding.
Het reeds in eenige staat van ontbinding verkeerdende lijk is hierna gekist en overgebracht naar het lijkenhuisle op de algemene begraafplaats te Makkum.
Op 15 July 1944 is het lijk geschouwd door een Duitsche militairen deskundige, in tegenwoordigheid van mij, verbalisant en den Opperwachtmeester Abele Scheepvaart van de Post Marechaussee te Makkum.
Uit een binnenzak van de burgerkleeding van den man kwam een Nederlandsch Persoonsbewijs te voorschijn, waarop als naam stond vermeld: Johannes Albertus Kamp, geboren 7 October 1922 te Djombang, Java, Nederlandsch IndiŽ, kantoorbediende, destijds woonachtig te Amsterdam, Valeriusstraat 22. De foto op dit persoonsbewijs kwam geheel overeen met het uiterlijk van het lijk (namelijk een zogenaamde halfbloed).
Waar behalve de meergenoemde overall en uitrusting, ieder rangteeken ontbrak betrof het hier, naar de meening van den Duitschen militairen deskundige, een in opleiding zijnd lid van de Royal Air Force. De dood bij het slachtoffer is vermoedelijk ingetreden door een schot door het hoofd. Naar schatting lag het lijk ongeveer 14 dagen te water.
Op 15 July 1944, omstreeks 11, is het lijk hierna ter aarde besteld op de algemeene begraafplaats te MAKKUM, gemeente Wonseradeel en wel in graf no. O.33.
Waarvan door ons, ambtenaren, is opgemaakt dit proces-verbaal op den eed bij den aanvang onzer bediening afgelegd en overgegeven aan onzen Groepscommandant, teneinde te worden verzonden aan den Heer Directeur van het Informatiebureau van het Nederlandsche Roode Kruis te 's Gravenhage, Korte Voorhout 14.
Gesloten te Makkum, 15 Juli 1944
get. A. Scheepvaart
get. A. Kuipers
Voor eensluidend afschrift:
de Onderluitenant, groepscommandant
To: N (Copy: AD/X and D/SIGS) ADX1/690.
From: AD/X 23rd January, 1945.
WT OPERATOR 'BOWLS'
Despite the recent unfortunate incident, this operator can be of considerable use to this Directorate for carrying out certain current plans.
It is essential that we should keep the set alive and, if you agree, we would like N Section to continue to send and receive the messages, working out the text in conjunction with X/AIR of this directorate.
We still believe there is a dividend to be obtained from this set and are particularly anxious to obtain the dividend in view of the recent incident. We do not intend sending any supplies to him; nor do we intend giving him the chance of doing us any harm.
XP/11/196 TOP SECRET 8th February 1945.
To: N/WT From: X/PLANS.1
WT OPERATOR "BOWLS"
1. Reference the conversation we had this morning I should be grateful if you would transmit the following message to
"Please be patient stop We are most anxious to continue employing your valuable services but we are not yet in a
position to acquaint you with the task we have in mind stop. In the meantime refrain from sending us any message
except of emergency nature in order to avoid unnecessary suspicion stop. We are doing all we can in the meantime
stop. Please continue listening for us."
2. I enclose the original telegrams, as requested.
ADX/1138 1st March, 1945
To: N Copy to: AD/E From: AD/X
WT OPERATOR BOWLS
After further consideration, the conclusion has been reached that WT operator BOWLS no longer fits into the PERIWIG scheme and in view of this any claim on him is renounced by this directorate.
Many thanks for your offer of turning him over to us and I am sorry it has been impossible xxx to make more out of him.
P.O.W. card BOWLS
WALTER, Johannes Albertus. Dutch Section.
Born: DJOMBANG, Java, D.E.I. 07-10-1922
Alias: WEES, Joannes Albertus @ ALBERTUS @ KAMP, Johannes Albertus.
Sent: From UK 05-07-1944
reported dead. Drowned when plane crashed. Information received from a Gestapo agent on 28-07-1944. This plane carried 4 of our agents, including WALTER and most of their material was recovered by the Germans. This Gestapo agent used WT plan taken to the field by WALTER to transmit to us.
Height - 5' 11½". Round face; high forehead; straight nose; wide nostrils; normal mouth; thick lips; round chin; brown eyes; black hair; javanese appearance.
Johannes Albertus Walter (Djombang, 7 oktober 1922 - Makkum, Wonseradeel, 6 juli 1944) was een Engelandvaarder, verzetsman en geheim agent.
Johannes Albertus Walter was de zoon van de Nederlandse Johanna Frederika (van) Stokkum en de IndonesiŽr Thomas Albertus Gerrit Walter. Johannes Walter groeide op Java op.
Walter diende bij de Koninklijke Marine van 1 januari 1942, totdat hij in Engeland aankwam (3 mei 1942). Daar werd hij ontheven van zijn marinetaken en getraind als radio-operator voor de RAF in Blackpool. Toen hij zijn opleiding had afgerond is hij ingedeeld bij het 320 Dutch Squadron RAF. Vervolgens is Walter in juni 1943 benaderd door SOE om als wireless operator mee te gaan met Kwint. Na zijn training bij SOE is Walter op 3 juli 1944 bevorderd tot tweede-luitenant.
Johannes Walter huwde in Engeland een jongedame met de voornaam Margaret. Zij was zwanger toen hij vertrok voor zijn missie in Nederland. Margaret Hargreaves, geboren 28-08-1923. Geboren in Chatterton, Manchester.
Voor zijn sabotage- en spionageactiviteiten in Duitsland vertrok Johannes Walter in de nacht van 5 op 6 juli samen met Pieter Kwint vanaf RAF Tempsford. Aan boord van de Hudson FK790 (MA-R) bevond zich een tweede SOE-team, bestaande uit de Nederlandse agenten Jan Bockma en Pleun Verhoef, dat namens BBO contact moest leggen met de Raad van Verzet. Zij zouden allen boven de dropping zone Appelsche heide bij Nijkerk worden geparachuteerd.
Het toestel van het 161 Squadron RAF werd gevlogen door de ervaren piloot flight lieutenant J.W. Menzies en zijn vaste bemanningsleden flight officer K.R. Bunney (navigator), sergeant E.M. Elliot (boordschutter) en sergeant D.J. Withers (radio-operator). De Lockheed Hudson vloog ongeveer 15 meter boven de Noordzee en kwam ter hoogte van Vlieland en Terschelling boven de Nederlandse Waddenzee. Om onduidelijke redenen heeft het toestel plots hoogte gewonnen en werd het van onderaf met een 20 mm-kanon beschoten door de boordschutter van een Messerschmitt Bf 110G-4 met 3 bemanningsleden. Dit Duitse jachtvliegtuig was na een alarmoproep tegen 0100 uur ter onderschepping opgestegen vanaf Fliegerhorst Leeuwarden.
De Hudson FK790 stortte vlak bij de afsluitdijk, zoín 4 kilometer ten zuidwesten van Kornwerderzand, in het IJsselmeer neer. Geen van de inzittenden overleefde de crash.
De Duitse geheime diensten in Nederland wisten via een lek in het SOE-radioverkeer dat deze vlucht zou komen. Het toestel had pas mogen worden neergeschoten nadat de agenten waren geparachuteerd, zodat zij gevangen genomen zouden kunnen worden; maar dat bevel had de Duitse bemanning volgens de piloot, Feldwebel Lahmann, niet bereikt.
Over welke SOE radio link met Londen gaat het hier? Welke WT operator stond op dat moment juni/juli 1944 in verbinding met Londen?
Zes bemanningsleden en SOE-agenten - waaronder Walter - werden in de dagen na de crash gevonden door vissers. Na onderzoek door een Duitse arts in het bijzijn van een Nederlandse politieagent die betrokken was bij het verzet zijn zij begraven bij de Nederlands Hervormde kerk in het nabijgelegen Makkum. In hun kleding en bagage zaten grote sommen Nederlands, Belgisch en Frans geld, one-time pads, een pistool, munitie en radiokristallen.
In 1997 heeft de Koninklijke Marine het toestel geborgen. In de cockpit werden de stoffelijke resten van de nog vermiste piloot John Menzies aangetroffen. Hij is in oktober 1998 bij de overige bemanningsleden begraven op de begraafplaats in Makkum.
Walter werd aangetroffen met een kogel in zijn hoofd, wat er precies in het vliegtuig is gebeurd blijft onduidelijk.