Hi!
In SA, in Adelaide (Oakbank and MtBarker), Size family: Reginald Size married late Helen Pyle, 2 kids: Brian & Susan.
Dont know if that helps, but there is a sh...load of sizes here, some cousins run a business called "size music" in Glen Osmond, Adelaide, there is a cousin Jeffrey who is a plumber in Littlehampton, they are a bit everywhere.
Let me know if you need to contact them...