The use of anabolic steroids in American football was an established practice by 1965 according to Matt Chaney in an exclusive article for MESO-Rx. A lot of players found an introduction via the York Barbell Club Gym:
"Football players found their way to the York Barbell Club Gym by the 1940s, seeking out Hoffman and storied strongmen like John Grimek, John Terpack, Steve Stanko and John Davis, the latter an Olympic gold medalist..."
"Football players found their way to the York Barbell Club Gym by the 1940s, seeking out Hoffman and storied strongmen like John Grimek, John Terpack, Steve Stanko and John Davis, the latter an Olympic gold medalist..."
1965: Steroids for Football an Established Practice (Second in a Series) - MESO-Rx
Matt Chaney examines how anabolic steroid use became an established practice in American football with many users including Sidney Blanks, Ron Mix, Jack Stroud, Stan Jones, and others.
thinksteroids.com