Brown has been part of the Padres' history since expansion
San Diego Padres - Wikipedia
1970s NL Uniforms
Padres uniforms: Visual history of brown, yellow, blue, orange
Blue replaced brown on Padres uniforms in 1991
Padres uniform history: The 1970s - ESPN - SweetSpot- ESPN
1972 San Diego Padres - Uniforms and Accessories - MVP Mods
San Diego Padres Baseball 1972 Vintage Sports Memorabilia for sale
MLB Jersey & Cap History
Blue replaced brown on Padres uniforms in 1991