Pre-season 1948 Big Nine Conference football season

^ bo, @ work on lions, signs contract . detroit free press. february 20, 1948. p. 23 – via newspapers.com. 
^ clyde b. smith named i. u. coach . franklin evening star. march 16, 1948. p. 1 – via newspapers.com. 
^ crisler quits coach; job goes oosterbaan: fritz stays director @ michigan . detroit free press. march 16, 1948. p. 1 – via newspapers.com.