Keith
The 122 Sqn ORB lists a
Warrant Officer G K Watkins for the first time on 31/12/44 and also records, on 27/6/45, a W/Off G K Watkins posted out for repatriation with a number of other Aussies.
I have checked the Australian War Memorial at
http://www.ww2roll.gov.au/ and they seem to list a Flying Officer G K Watkins.
Steve