Percival Fank George Tibbs
Helen Christina Tibbs

from 1931 he appears in Australian Electoral registers for Victoria

Districts - Gippsland, Flinders, Mcmillan

and prior to that :-

Name: Percival F G Tibbs
Spouse: Helen C G Smith
Date of Registration: Jul-Aug-Sep 1928
Registration district: Horsham
Registration county (inferred): Sussex
Volume Number: 2b
Page Number: 855

so between his marriage in 1928 and 1931 !

and from this his children ( and grand children) :-

http://www.australiancemeteries.com/vic/bawbaw/drouin/drouin.htm
Drounin Cemetry
Tibbs Helen Christina Gourlay. 1974
http://www.australiancemeteries.com/vic/bawbaw/drouin/HTML/fPix/f188.jpg
Tibbs Percival Frederick George. 1986
http://www.australiancemeteries.com/vic/bawbaw/drouin/HTML/fPix/f187.jpg