Georgettes lived in Wanganui, NZ and apparently the Davidsons visited frequently. There were ? 2 sisters who were nuns and a brother, old Tony(1920s). Young Tony was a compatriot of Nancy Perry(Davidson) and last known of in Auckland I think.
In the old Wanganui cemetery, there is a grave of little .... Davidson Georgetti, a boy. Guess this is where the tie up is with Jean Johnstone/Davidson