Ask Me Anything - by Paul Lukas - Uni Watch
How the Pittsburgh Pirates sparked a uniform revolution in the 1970s - ESPN
Uni Watch's Friday Flashback: Buzz, buzz go the Pirates - ABC News
Pirates & Brewers Negro League Throwback Uniforms — UNISWAG
College football preview 2019: Uniforms, helmets, stadium changes - Sports Illustrated
1970-1979 Michigan Football Uniform Timeline — - Michigan Football History
Baseball cap history and timeline
The year 2023 marks 75 years since the Pirates permanently switched to black and gold for their colors, as well as the introduction of the classic P insignia found on the caps.
Batting helmet - Wikipedia
Pirates Made Uniform History – FOB Sports (Friends of Bob)
The Definitive 2022 MLB Jersey Power Rankings, News, Scores, Highlights, Stats, and Rumors
The Big Red Machine
Best Pittsburgh Pirates Logos of All-Time - Bucs Dugout
Pirates Made Uniform History – FOB Sports (Friends of Bob)
Uni Watch's Friday Flashback: Buzz, buzz go the Pirates - ABC News