Liz Did you not tell us , some time ago , that you
had a marriage reference for a Catherine Cain in
Australia ? If so it is possible to get a cert. online
from the state. It would be worth the expense to
see if her father's name is given & it matches
details for your grandmother or is a false lead. In
fact they have wonderfully helpful records and you may get enough on screen without needing a cert.
unrestricted access for marriages 50+ years ago free.