Compiled from articles originally published in Sports illustrated magazine.
Sports Illustrated The San Francisco 49ers at 75
Leo Nomellini Football Trading Card Database
San Francisco 49ers: 30 greatest players of all time
Leo Nomellini Football Trading Card Database
Leo Nomellini (1977) - Hall of Fame - National Football Foundation
NFL 100: At No. 83, Leo Nomellini was bigger than life, and his life was very big - The Athletic
Team History Pro Football Hall of Fame
1961 Fleer # 67 Leo Nomellini San Francisco 49ers (Football Card) VG/EX 49ers Minnesota : Collectibles & Fine Art
Leo Nomellini Original Sports Autographed Items for sale
Pro Football Hall of Fame: Leo Nomellini - University of Minnesota Athletics
Top 10 49ers (updated) : r/49ers
Sports Illustrated The San Francisco 49ers at 75: Sports Illustrated: 9781629379548: : Books
San Francisco 49ers Team History
San Francisco 49ers: The Top 50 Greatest 49ers of All Time, News, Scores, Highlights, Stats, and Rumors