The All-Time MLB Team, Center Field: Willie Mays - AZ Snake Pit
Seals Stadium A Long Way from the Polo Grounds
Classic Shots of the Polo Grounds - Sports Illustrated
The Polo Grounds - National Ballpark Museum
The Polo Grounds, The Lost Ballpark of New York's First Baseball Team - Untapped New York
The Polo Grounds: The final game, 50 years ago today - The Bowery Boys: New York City History
The Polo Grounds - National Ballpark Museum
Old Ballparks
Polo Grounds (New York) – Society for American Baseball Research