People You Should Know: Dave Kopay
Morning Man Classic: David Kopay!
62 David Kopay Photos & High Res Pictures - Getty Images
Read Dave Kopay's open letter to Michael Sam - Outsports
David Kopay cutting a cake — Calisphere
Carl Nassib: NFL supports first openly gay active player. Will more athletes come out?
Dave Kopay knows what questions should be asked by NFL - The Washington Post
The first openly gay football player was a Detroit Lion - Axios Detroit
The David Kopay Story: An Extraordinary Self-Revelation: Kopay, David: 9780877951452: : Books
Oh, by the way: Happy Birthday, Dave
THE RELEVANT QUEER: David Kopay, One of America's First Openly Gay Professional Athletes
GPU News vol. 6, #8, May 1977; Dave Kopay Dave Kopay Gay People's Union, J. D. Butkie
Queer Designs for Living in My America (formerly HomoNormativity & The American Ideal): Queer in Football
NFL's First Gay Star on Michael Sam and His Own Shocking Decision to Come Out in 1975: 'I Was Desperate' – The Hollywood Reporter