A Kilmarnock man, he joined Celtic in 1903 from Bristol Rovers and was an integral part of the team which won six League Championships in a row from 1905–1910.
After becoming captain he led led the team to success in another three Championships between 1914 and 1916 before he suffered a bad injury which ended his career.
He was part of the mighty half-back line of Young, Loney and Hay which Celtic supporters talk about to this day, and was one of the great characters of Scottish football in the era before the Great War.
He also won the Scottish Cup on six occasions, but amazingly was only capped once by Scotland in a full International.
His death in 1922 in a motorcycling accident when he was only 40 plunged all of Scottish football into sadness.