In brief, what I’ve found out about the names in the documents…..
1. The Jubilee Medal (and others) belonging to G. R. SIBTHORPE are advertised for sale on the internet.
2. From Trove Personal Notices, George Richard SIBTHORPE and his wife Beatrice Eleanor were the parents of Jack Innes SIBTHORPE and two daughters, one of whom became a doctor. I have found births for Jack Innes SIBTHORPE and one of his sisters in Victoria.
3. George Richard SIBTHORPE joined the Australian Army in 1906, and kept
re-enlisting. His records can be seen on the National Archives website. In the 1920s he was posted to South Australia, where he remained for the rest of his life. There are many mentions of him on Trove, and also some pictures. He and his family lived in the South Australian suburb of Henley Beach.
4. George Richard SIBTHORPE, his wife Beatrice Eleanor, and Jack Innes SIBTHORPE all died in South Australia, George aged 69 in 1955, Beatrice in 1988, and Jack aged just 32 in 1948. Jack was not married. They are all buried in Centennial Park Cemetery.
5. George Richard SIBTHORPE was born 2nd December 1885 at St Leonards, NSW. He was one of 5 children born to Robert Hudson SIBTHORPE and Mary Ann BAILEY. He married Beatrice Eleanor INNES in 1911 at Chatswood, NSW.
His siblings were…..
Frederick Leonard SIBTHORPE born 1884 at St Leonards NSW
Robert James SIBTHORPE born 1888 at St Leonards, NSW
Emily G SIBTHORPE born 1890 at St Leonards, NSW
John Bailey SIBTHORPE born 1892 at St Leonards, NSW