The son of Selina and James B. Conduit, Harry was born in Wolverhampton on 24 March 1899. In 1901, he was living at Laburnam Street, Wolverhampton, with his parents, and siblings Emma, Ellen Gertrude and James B. By 1911 they were at 16 Mander Street, with additional children Walter Edward, Oliver Edgar, John Roland and Rennie Norman.
On 7 April 1915 he joined the Wolverhampton Division of the Great Western Railway as an engine cleaner, but left voluntary in July that year. He served as Private with the Northumberland Fusiliers (number 64766), the Durham Light Infantry (number 30262) and the York & Lancaster Regiment (number 52951). He survived the war.
On 16 February 1920, he rejoined the Great Western Railway, first as an engine cleaner and then as a fireman. He worked until November that year, when he resigned to go to Australia, where he arrived in January 1921. He got married in 1922. Harry died in Perth, Western Australia, in 1976.