Content, site design, and production: The National Baseball Hall of Fame and Museum.

Education advisors: Penney Gentile, Mary Leonard, Sarah Stewart, and the staff of The National Baseball Hall of Fame and Museum Education Department.

Additional thanks: Marty Appel (The Topps Company, Inc.), Warren Bateman, Darryl Brock, Bill Frishette (Nike), Doug McWilliams, Anne Occi (Major League Baseball Properties), Todd Radom (Todd Radom Design), Greg Rhodes, Janet Rigby, Tina Urban (Philadelphia Phillies), Gene Ulishney (Brooks Shoes).

Special thanks: Marc Okkonen, author of Baseball Uniforms of the 20th Century.

All uncredited images are from the collection of the National Baseball Hall of Fame and Museum. Additional images (as credited in site) courtesy of the New York Times, Philadelphia Phillies, Library of Congress, Chicago Historical Society, Topps Company, Inc.

Graphic images of baseball uniforms in the Uniform Database from 1900-1994 are courtesy of Marc Okkonen; from 1995-date are courtesy of Major League Baseball Properties.