Walter O'Malley's 1957 minor league purchase: A pictorial essay - True Blue LA
Sorry, Chicago—Los Angeles Was Home to the First Wrigley Field
Lot Detail - 1950-57 Wrigley Field Los Angeles Angels PCL The Sporting News Original 3.25 x 4 Black And White Negative (The Sporting News Collection/MEARS Auction LOA)
Wrigley Field (Los Angeles) – Society for American Baseball Research
Los Angeles Wrigley Field - history, photos and more of the Los Angeles Angels former ballpark
Catalina Island – Society for American Baseball Research
Wrigley Field in South LA? How LA Lost an Iconic Baseball Stadium
SOCAL SPORTS HISTORY: A Salute To The Pacific Coast League
Wrigley Field and the Pacific Coast League - California Historical Society
WrigleyField1 Los Angeles, Hey! I Was #1
Best of the Ballparks MLB Rankings: 2019
Wrigley Field historical sleuthing: The one that stumped us all - Bleed Cubbie Blue
Wrigley Field upgrades one step away from realization – The Denver Post
Bricks, ivy, Jumbotron: Wrigley gets $500M upgrade - The San Diego Union-Tribune
Wrigley Field - Amazing America