Owned and run by Joseph Verheye family since 1939
Prop Shop Hobbies has been going since 1975
Louie's reportedly was an ice cream store prior
to becoming a bar. It may date from 1933 when prohibition ended..
Bur-Lers since early 1950s
The Rinke family has been in the car business since 1917 and before that ran a hardware in Center Line in early 1900s.
Private individuals ran their own businesses such as the owner of this the largest mansion in Warren. I am declining to name it or the location to honor privacy.