MLB Jersey & Cap History
Pirates' alternate uniform harkens to early '70s
Uniforms and Logos Pittsburgh Pirates
Pirates Made Uniform History – FOB Sports (Friends of Bob)
Pittsburgh Pirates Alternate Uniform Pittsburgh pirates, Pirates, Pittsburgh
It's heartwarming': Drew Maggi enjoys another magical moment, as he collects his first MLB hit
Making sense of a wild day for the Pirates' roster
How the Pittsburgh Pirates sparked a uniform revolution in the 1970s - ESPN
Kyle Schwarber homers, Bryce Harper ejected but Phillies fall to Pirates 3-2, Sports Ap