Brian.
Take a look:
http://www.lockheed.adastron.com/lodestar/lodestar.htm
You will notice that S/L Brooker and 5 of his companions are mentioned on p.40 of 289 in the No.5 ED P.O.R. (De-planed at PERTH on 7/3/42), the balance (including Sgt GORDON) are on p.41.
Col.