Crampets on Family Tree Circles

Hi, I don't know of anyone born before 1912, except for the fact I had an ancester by the name of Roy Cramp, who served in WWI, and my great-grandmother, who changed her name to Giesendana when she came to Australia, from, if I'm correct, Switzerland. All I know of her is her last name, and that she married into the Aldridge family, up in Townsville. My grandfather, Robert Cramp, is a descendant of Roy, and before that, I can't tell you.

My grandmother is Melody Aldridge, and she married Ronald Northey, whose father is Roland Northey. I don't know his mother's name.

If anyone can fill in the blanks, it would be awesome :)