sentences:  Duguid retired from his surgical and general medical practice in 1956, but later developed an interest in geriatric medicine.The murder of a white man by Aboriginals at Landers Creek, in the former Territory of Central Australia (now the Northern Territory), leading to what became known as the Coniston massacre, when police shot 17 Aboriginal people during the course of the hunt for the murderer in 1928, sparked Duguid's interest in Aboriginal rights.In 1934 he headed to Darwin, but missed his connection from Alice Springs after responding to a request to perform some emergency surgery there and stayed on for three weeks.