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Archive Report: Allied Forces

Compiled from official National Archive and Service sources, contemporary press reports, personal logbooks, diaries and correspondence, reference books, other sources, and interviews.
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139 Squadron Crest
06/07.04.1944 No. 139 Squadron Mosquito IV DZ370 XD-U F/O. Andrew M. Howden

Operation: Hamburg Germany

Date: 6/7th April 1944 (Thursday/Friday)

Unit: No. 139 Squadron

Type: Mosquito MkIV

Serial: DZ370

Code: XD-U

Base: RAF Upwood

Location: Lost without trace, possibly lost over the North Sea

Pilot: F/O. Andrew Mackenzie Howden J/28764 RCAF Age 24. Killed

Nav: F/O. Frederick Stevens 135013 RAFVR Age 32. Killed


Taking off from RAF Upwood at 20:45 hrs on an operation with 34 other Mosquitoes to bomb Hamburg.

The city reported that 39 people were killed on the ground with a further 161 injured. 322 people were bombed from their homes on the first operation with casualties to the city since October 1943. Mosquito DZ370 was reported as lost without trace - possibly over the North Sea. This was the only aircraft lost on this operation.

Taken at No. 1 Air Observers Instructor School. Rear L-R: Sgt. Bullock, Sgt. Willcock, Sgt. Owen, Sgt. Turner. Sitting L-R: Sgt. McCarthy, Sgt. Stevens, Sgt. Richardson, Cpl. Worth, Sgt. Ayres.

139 Squadron Mosquito at RAF Upwood.

Burial details:

F/O. Andrew Mackenzie Howden. Runnymede Memorial. Panel 246. Son of James and Jessie Howden, of Guelph, Ontario, Canada.

F/O. Frederick Stevens. Runnymede Memorial. Panel 209. Son of Frederick and Gertrude Stevens, husband of Sarah Saidee Stevens, of Birmingham, England. Further information from Lewis Stevens: My father was born and brought up in Birmingham in 1912. We moved to Stourbridge (12 miles west of Birmingham) about 1941 when we were bombed out in Birmingham. He married in 1933. Stationed in Canada for about 18 months but posted as a Mosquito navigator back in the UK in early 1944.

Researched carried out by Michel Beckers for Aircrew Remembered - July 2016. With thanks to Lewis Stevens son of the navigator - other photographs from the Michel Beckers collection.

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Sources used by us in compiling Archive Reports include: Bill Chorley - 'Bomber Command Losses Vols. 1-9, plus ongoing revisions', Dr. Theo E.W. Boiten and Mr. Roderick J. Mackenzie - 'Nightfighter War Diaries Vols. 1 and 2', Martin Middlebrook and Chris Everitt - 'Bomber Command War Diaries', Commonwealth War Graves Commission, Tom Kracker - Kracker Luftwaffe Archives, Michel Beckers, Major Fred Paradie (RCAF) and MWO François Dutil (RCAF) - Paradie Archive (on this site), Jean Schadskaje, Major Jack O'Connor USAF (Retd.), Robert Gretzyngier, Wojtek Matusiak, Waldemar Wójcik and Józef Zieliński - 'Ku Czci Połeglyçh Lotnikow 1939-1945', Archiwum - Polish Air Force Archive (on this site), Anna Krzystek, Tadeusz Krzystek - 'Polskie Siły Powietrzne w Wielkiej Brytanii', Franek Grabowski, Norman L.R. Franks 'Fighter Command Losses', Stan D. Bishop, John A. Hey MBE, Gerrie Franken and Maco Cillessen - Losses of the US 8th and 9th Air Forces, Vols 1-6, Dr. Theo E.W. Boiton - Nachtjagd Combat Archives, Vols 1-13. Aircrew Remembered Databases and our own archives. We are grateful for the support and encouragement of CWGC, UK Imperial War Museum, Australian War Memorial, Australian National Archives, New Zealand National Archives, UK National Archives and Fold3 and countless dedicated friends and researchers across the world.
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