Sorry Sys, but they could be from a number of places. The Beauforts could be from either Goodenough Island, Nadzab or Tadji. The Spits from either Kiriwina, Momote or perhaps Morotai. as for the P-40's anywhere from Noemfoor, Tadji, Biak, Hollandia, Nadzab, Cape Gloucester, Morotai or even Tarakan. Sorry but I don't have many specifics on them pics, I know which Sqn, but where at I don't know.
Anyway The mighty Ca-15 and Woomera.