The Coal Fields of Bay County, Michigan Publisher: Bay County, Michigan: Charles B. Schaefer, ca. 1890. History of the coal fields and mines in Bay County. URL is: http://mifamilyhistory.org/bay/coalfieldsbay.htm Donna Hoff-Grambau Michigan Family <http://www.mifamilyhistory.org/> History Network Bay <http://www.rootsweb.com/~mibay/index.html> County MIGenWeb Isabella <http://www.rootsweb.com/~miisabel/isabella.html> County MIGenWeb Midland <http://www.rootsweb.com/~mimidlan/midlandindex.htm> County MIGenWeb Missaukee <http://www.rootsweb.com/~mimissau/missauke.html> County MIGenWeb