I'm looking for the circumstances of the dead of these two airmen of 620 Squadron who died in 1946:

- Aircraftman 1st Class Sydney James Henry KEEHNEMUND (3007506) who died on 02 June 1946,

- Aircraftman 1st class John Charles HEMINGWAY (3031421) who died on 05 June 1946.

I thank you in advance for your help.