Found an article in my files, someone had posted.
Link was http://boards.ancestry.com/mbexec?htx=message&r=rw&p...
Quoting the beginning to help you search
"Zimmerman Manufacturing Co, Auburn and DeKalbCo, IN, 1875-1915
Author: Karen Hanley Date: 27 Jul 1999 12:00 PM GMT
Surnames: Zimmerman, Watson, Baxter, Robbins
Zimmerman Manufacturing Co.
The Zimmerman Family is an integral part of early Auburn and DeKalb County industrial history. Their industrial pursuits spanned more than sixty-five years and included the operation of saw and planing mills and the manufacture of barrels, shingles, furniture, windmills, tanks, buggies and automobiles."