Hi - my name's Gill Williams and my grandmother was born Elizabeth Gaby in New Zealand around the turn of the last century. My father has quite a lot of information about the Gaby family, including his grandfather and great grandfather (who sold the Bromham house).
We've been to the Gaby house near Bromham in Wiltshire and to the local church where visible gravestones go back to at least the early 15th Century.
Please feel free to email my father or myself. I'm on firstname.lastname@example.org
and Dad's on JGWilliams@xtra.co.nz
Regards, Gill Williams