Walt Kowalczyk - All-Time Roster - History | Raiders.com
Walt Kowalczyk
Number: 35
Position: RB
Years: 1961
School: Michigan State
Kowalczyk joined the Raiders after two years with Philadelphia and one with Dallas. He played in 4 games and gained 28 yards on 10 carries and caught 3 passes for 8 yards. He returned 1 kickoff for 19 yards.