Thomas and Sarah had seven children - Edith Jenny (1880-1881), Mabel Stella (1881-1970), Leslie Le Gay (1884 -1969, married the delightfully named Miss Widgie Potts of Narrabri, NSW, in 1915. Her real name was the more prosaic Ann), Reginald Owen (1889-1953, 1st A.I.F), Dorothy Alice (1890-1987), Leeuwin Beatrice (1895 - 1981, married Peter Charles Ferguson, of Barcaldine, QLD, in 1924), and Mary Hope Bradgate (1899 - 1978, married Jeffrey Ivey Retallack in 1942). The first two children were born in Ballarat and the rest in Hawthorn. Sarah Anne Roxburgh died on 1942, aged 84. Thomas and Sarah are buried at Brighton Cemetery. Interestingly, their name is spelt as Roxburghe on the head stone.
From October 1944 there was a small Italian Prisoner of War Camp at Koo Wee Rup (read more here) and the men were allocated to work on various local farms, including the Roxburgh farm. My Dad, Frank Rouse, who was ten at the time, remembers truckloads of the prisoners driving down the road to the farm in the morning, one guard on each truck. At lunch time a food van with a portable cooker would go the farm to feed them.
Finally, there was an interview in the Pakenham Gazette of December 8, 1999 with Bill Roxburgh, the grandson of Thomas. In the interview Bill talks about how his grandfather, who owned Cheriton Park, had planted all different kinds of trees on a five acre section of his land and had built his own park to relax in. Some of the trees are still there.
I have created a list of newspaper articles on Trove on asparagus growing on the Koo Wee Rup Swamp in the early days and Thomas Roxburgh, you can access it, here.