The web address of the Otsego County Historical Soc is: www.otsego.org/ochs
The phone number of the Otsego County Historical Soc is: 989-732-4568.
The address of the Otsego County Historical Soc is: Po Box 1223, Gaylord, MI 49734
The web address of the Washtenaw County Historical is: http://washtenawhistory.org
The web address of the Monroe County Historical Museum is: www.co.momroe.mi.us
The web address of the Huron County Historical Society is: www.thehchs.org
The web address of the Allegan County Historical Society is: http://www.allegancountyhistoricalmuseum.o
The web address of the Branch County Historical Society is: http://www.branchcountyhistoricalsociety.org
The web address of the Wexford County Historical Soc is: http://www.wexfordcountyhistory.org
The web address of the Iosco County Historical Society is: www.ioscomuseum.org
The web address of the Lenawee County Historical Musm is: http://freepages.history.rootsweb.ancestry
The web address of the Oceana County Historical Society is: http://www.oceanacountyhistoricalgenealogicalsociety.org
The web address of the Monroe County Historical Msm is: http://www.co.monroe.mi.us