Harold Calton Le Sueur played for the Wallaby club in 1909. Starting as Hindmarsh reserves in 1908, this team changed their name to Wallaby in 1909 and went it alone as an independent club. They had no success, finished bottom and folded up at the end of the season.

Despite claims that they were all Australian born players, Le Sueur was born in Brentwood, Essex. He was a draper, married, and living in the suburb of Prospect. Le Sueur enlisted on 5th April 1916 aged 27. He was posted to the 5th reinforcements of the 15th Artillery Brigade, but he would never reach the front line. Taken off his troop ship in October at Cape Town seriously ill, he spent some time there in hospital.

He eventually reached England and returned to duty in March 1917 at the Parkhouse convalescent and supply services depot on Salisbury Plain. Still suffering from illness he was returned to Australia and medically discharged on 19th September 1917. The six months he spent in South Africa and England were counted as overseas service on his record. The nature of his illness was not recorded.

He lived in Adelaide after the war, but his date of death is not known.