He was selected by the Detroit Lions in the eighth round of the 1955 NFL draft, but instead signed with the Edmonton Eskimos of the Western Interprovincial Football Union.
A native of West Mifflin, Pennsylvania,[3] Walker attended Munhall High School, where he played interscholastic football as an end.
Fellow Sigma Chi brothers of Bill Walker at the University who were also All American football players were Chet Hanulak and Bob Pellegrini.
Walker was selected in the eighth round of the 1955 NFL draft by the Detroit Lions as the 96th overall pick.
[14] The 2009 edition of The USA Today College Football Encyclopedia named Walker, alongside Bernie Faloney, as Maryland's greatest two-way player since 1953 for his performance as an end on offense and defense, and as a punter.