I am not 100% sure, but there is a tombstone in St. Mark’s Cemetery in Pakenham that shows Arnold Cavanagh (according to the 1921 census for Fitzroy, this is the name he went by) lived from 1907-1976, and his wife Muriel M. Tripp lived from 1910-1986. They also had a son W. Keith that lived from 1938 to 1968. I am not including this on the tree until we are sure these two Arnolds are the same person.