I believe RAFCommands traced his death in Cambridge District records as GumEEY, and a Raymond Gumley birth in 1916.
430430 - Unaccounted airmen - 30-4-1943
There were a number of RAF bases around Cambridge, so perhaps not a flying accident, but illness or accident, such as RTA?
Ground crew aren't usually shown as being affiliated to any specific Squadron, which may explain lack of any Unit details.
Could this be his father?
GUMLEY, ARTHUR. Corporal. Service Number 2358. Died 11/06/1915. Aged 23
1st/4th Bn. Leicestershire Regiment
Husband of Eva Gumley, of 105, Thrumpton Lane, Retford, Nottingham.
Buried at WIMEREUX COMMUNAL CEMETERY. Plot I. Row I. Grave 28A.
(birth would need to be 1st Qtr 1916).
Possibly?
Raymond Gumley. Birth Registration Quarter: Jan-Feb-Mar 1916
Registration District: Leicester, Leicestershire,
Mother's Maiden Name: Dakin. Volume:7A Page 440.
You say that Kathleen Pryke remarried shortly after the death of her previous husband - so could this be related?
Name:
Kathleen A Gumley. Birth Registration Quarter:
Oct-Nov-Dec 1941
Leicester, Leicestershire. Mother's
Maiden Name: Brown. Volume: 7A. Page: 511
PRYKE, PETER BERRY FAIRWEATHER. Sergeant (Pilot). Service Number 741959
Died 13/08/1940
Royal Air Force Volunteer Reserve
Name: Peter Berry Fairweather PRYKE
Father: Sidney Nicholas PRYKE (1870-1946)
Mother: Amelia Lily FAIRWEATHER (1871-1952)
Birth 1914 Thetford District
Death 13 Aug 1940 (age 25-26) Cambridge, Cambridgeshire
Died in war service. Effects to widow
Kathleen Ellen Pryke
Commemorated on St Lukes, Cambridge War Memorial Roll of Honour WW2
AIR81/2587 Flying Officer F A H Lambart, Sergeant D O Rewa, Sergeant H H Boulter, Sergeant P Pryke, Sergeant S Robinson, Sergeant D L Jones: killed; Sergeant P G Marsh: injured; aircraft accident, Bassingbourn, Wellington L4387, 11 Operational Training Unit, 13 August 1940. Reason for Loss, Swung out of control and hit another 11 OTU aircraft (Wellington I L4286)
and a photo of L4387
https://www.iwm.org.uk/collections/i...ject/205208425