Leonie, I would suggest the names of the people in this photo are: Back row ( L to R ) Elsie Vorbach, Eliza Vorbach, Phillip Vorbach {father}, Ann Vorbach (nee Collins) {mother}, Ivy Vorbach, Annie Maud Vorbach.
Front row (L to R) Ernie Vorbach, Bill Vorbach, Tom Vorbach, Phillip Vorbach, Jim Vorbach,Con Vorbach, Walter Vorbach
The photo must have been taken before March 1946 when son Phillip died in railway accident -23 Mar 1946- crushed between the buffers of two railway trucks
Kind regards from memorypages