I just bought a book by Thomas McGuane. Seeing his early life was spent in Michigan got me to thinking of other writers and notables that got their start here or spent time here fishing Michigan waters. Here's a few others:

Robert Traver "AKA" John Voelker
Hemingway
A.K. Best
FAOL's J. Castwell & Ladyfisher
Doug Swisher
Carl Richards
Kelly Galloup

There are others please fell free to add names.