If you have any information about Hamilton Township's History, organization, records, or have a source relative to the township and you are willing to have it presented on the township's pages please contact Dale Cratsenburg.

• 1860 Census for Hamilton Twp. 
• 1880 Census for Hamilton Twp. - The township growth is quite noticeable. 
• 1910 Federal Census Index of Hamilton Twp. 
• 1910 Federal Census Index of Sickles   
• 1930 Federal Census Index of Hamilton Township

• 1901 Imperial Atlas of Gratiot Co. Michigan - Landowners
• 1901 Imperial Atlas Map Image online
• 1889 Atlas of Gratiot County, Michigan - List of Patrons

Excerpts pertaining to Hamilton Twp. from "History of Gratiot County Michigan" by W. Tucker pub. 1913