Tree #1... I can't tell if the leaf/branch arrangement is alternate or opposite. In N. America I would say it is either a Pecan (alternate leaves) or an Ash species (opposite leaves) perhaps a Raywood Ash. Being in Aust. it may be something completely different.
#2 looks like a Locust tree (Robinia sp.) but again, being in Aust it may be an Acacia.
Rereading my reply I was no help at all