Best Throwback Uniforms in MLB History
October 14, 1979: Pirates' 'Family' unites to extend World Series back to Baltimore – Society for American Baseball Research
Pirates rally with We Are Family
Pirates unveil baseball's freshest look with 1979 throwback uniforms
The love affair that lives on
How the Pirates chose 'We Are Family' as their anthem
logisticRegression/train.csv at master · getgaurav2/logisticRegression · GitHub
Old Time Family Baseball — Mighty Flynn Asks: Favorite 1979 Pirates Uniform?
Mitchell & Ness Pittsburgh Pirates MLB Fan Shop
Uni Watch's Friday Flashback -- The Pirates go back to their bumblebee days - ESPN
Pirates rally with We Are Family
Boys of summer
How the Pirates chose 'We Are Family' as their anthem
Pirates rally with We Are Family
Mitchell & Ness Pittsburgh Pirates MLB Fan Shop