The sports history of Wrigley Field and Northwestern athletics
Maybe Purdue and Northwestern Will Play On an 80-yard Field — Boiled Sports
Northwestern Football Scheduled To Play Purdue At Wrigley Field In Fall 2021 - CBS Chicago
Northwestern Football Returns To Wrigley Field This Fall – Wrigleyville Chicago
Iowa Hawkeyes football team to play at Wrigley Field in the fall
Hawkeyes to play at Wrigley Field
Photos: Wrigley Field transforms from a baseball field to a football field
Wrigley Field to host Iowa-Northwestern football game
Iowa-Northwestern football game set for Wrigley in November