Hi Tania
Good to hear from you - I never got another reply from Sally, maybe you will. My post has been there since 2006! I don't know much more than I wrote in that: I guess your grandfather Jon was a brother of Arthur (bc 1901) who was son of Samuel (1868) and Alice? Are you in Australia? Samuel died in London, maybe he went to Oz, or his sons went there. Hope to hear more from you , do you have any specific questions? I also have photos.
Angela