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http://memory.loc.gov/ammem/jrhtml/jrabout.html
http://www2.tltc.ttu.edu/Harper/3339BB/WebStuff/20thCentury/20thcent.htm
http://www.aaronslinks.com/baseball-history.htm
DiMaggio, Crosetti, Lazzeri: [Online Image] http://www.sfnorthbeach.com/nbmus.html
Reulbach: [Online Image] http://www.homestead.com/runscott/BigEd.html
Giuliani/Torre: [Online Image] www.ballenphotos.com
George Steinbrenner 2: [Online Image] www.espn.com
Polo Grounds final game: [Online Image] www.baseballlibrary.com
Demolition of Polo Grounds: [Online Image] www.ballparksofbaseball.com
Walter O'Malley: [Online Image] www.davesdugout.com
Maps: [Online Images] www.artnyc.com
Larry MacPhail: [Online Image] www.enel.net
Washington Park [Online Images] www.ballparks.com
Hilltop Park [Online Images] www.ballparks.com
Yankee Stadium [Online Images] www.ballparks.com
Ebbets Field [Online Images] www.ballparks.com
Polo Grounds [Online Images] www.ballparks.com
Shea Stadium [Online Images] www.ballparks.com
Memorial Stadium [Online Image] www.ballparks.com
Camden Yards [Online Image] www.ballparks.com