William Isaac Dowsett was born on 18 Jun 1864 in South Wharf Road, Paddington, England, to Alfred Prince Dowsett and his wife Maria Rice. He is a brother of Frank and Harry Dowsett, also in the Album, who came to Australia with their parents and another brother Alfred on the ship Somersetshire in Oct 1867. William married Louisa Frances Mills in 1901. Their son, William Frederick Prince Dowsett, was born and died in 1902. William Isaac was possibly a draper in Brisbane and then Melbourne. William died in 1956 aged 92, at the Melbourne Home and Hospital for the Aged, Cheltenham, and was buried at the Melbourne General Cemetery, Parkville. At the time of his death William's usual place of residence was stated as 23 La Perouse Street, Canberra, ACT, and his occupation was grocer.