Adastra Reunion at Fitzpatrick Park, Picnic Point, Sydney, May 19, 1979. Included most office people and some early field engineers and a couple of navs, one camera op but no pilots.
Click here for a larger image with names.

Photo: Frank Wandrak (FW-001)
ADASTRA AERIAL SURVEYSwww.adastra.adastron.com