A ruck shepherd, Walker was a best and fairest winner at Fitzroy in 1909. He was a member of premiership sides in 1904, 1905 and 1913, the latter as club captain. He was the last surviving player on either team from the 1906 VFL Grand Final.
References
^Donald, Chris (2002). Fitzroy: For The Love Of The Jumper. Pan Macmillan Australia. ISBN978-1-877029-18-9.