Wrigley Field designated as federal historic landmark - Sports Illustrated
Wrigley Field - History, Photos & More of the former NFL stadium of the Chicago Bears
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At last, definitive proof that Wrigley Field was named after the Cubs owner and not his gum company - Bleed Cubbie Blue
Wrigley Field named historical landmark, which could result in Cubs making millions
Wrigley Field, Chicago, Illinois
Chicago Cubs: Wrigley Field renovations must comply with Americans with Disabilities Act, feds investigate - Chicago Sun-Times
Wrigley Field Designated National Historic Landmark