Can you help identify?

Photo 93

J_JEFFERSON_7.jpg
Location unknown, probably Melbourne, Victoria. Date unknown. "22nd Pioneer Reunion" written on the back. Unknown if it was the 22nd Reunion or it was meant to be 2nd 2nd Reunion. Identified personnel : 4th from right NX95044 F. C. Gatehouse. Photo courtesy of J. Jefferson (daughter of NX95044 F. C. Gatehouse) id no. J_JEFFERSON_7