Details of Sidney’s life and family are unknown to date.

On 18 Aug 1945 Liberator KH 218 took off from RAF Cocos Islands for a S.D. Operation in Central Malaya. A SOS was sent out, which a few minutes later was cancelled. Another SOS was then received followed by a message that the aircraft was ditching. It gave course, height and approximate position. An intensive A.S.R. search was instituted. A total of 16 sorties were flown during the next 4 days. The search was called off on the 22 Aug 1945.

Aircrew killed were:
Captain, R H McLeod, J/44389
2nd Pilot, J Stewart, 1802355
Nav, W F M Skipworth, 195407
Air Bomber, A E Penfold, 164096
Flt/Eng. G J H Snewing, 164186
Wop/Air, S Aarons, 2200115
A/G, R H Lacey, R/193335
A/G, F W Gonsalves, 605687