Historic Stadiums and Ballparks of Chicago – Wonder City Studio
The history of black baseball in D.C. includes Frederick Douglass' sons, Josh Gibson and the fight for equality
Ballparks Past and Present
Home runs are killing baseball - AS USA
Print of the Historic Ballparks of Chicago's Northsiders – Wonder City Studio
The Atlanta Braves won the World Series. But they face a tougher opponent off the field
NU Recognition Elusive for South End Grounds and Early (1871) Boston Baseball - NU News 50
Which MLB stadiums have a real organist? - Quora
Take Me Out to the Ballpark : An Illustrated Guide to Baseball Parks Past and Present by Josh Leventhal (2000, Hardcover) for sale online
List of baseball parks in Washington, D.C. - Wikipedia
Some 19th Century Ballparks - Baseball Fever