[3] Prout stood for election to become the District Attorney of Suffolk County, Massachusetts, in 1926, but lost.
[2] William Prout was born in the West End of Boston, Massachusetts on December 24, 1886.
[2] Prout won his preliminary heat of the 400 metres at the 1908 Summer Olympics with a time of 50.4 seconds.
[2] Prout served as the tenth state deputy of the Massachusetts Knights of Columbus from 1921 to 1924.
[2] For his service to the Catholic Church, he was made a knight of the Order of St. Gregory the Great in 1924.