Seeking Michigan is in the process of preparing county research guides listing the original source records held by the Archives of Michigan. The record types include: Court Records, Land, Military, Naturalization, Occupational, Poor House Records, Prison, Probate, Tax Records, Voter Records and more, depending on the county. Within each category, you will find a list of the specific records as well as the year range and record group number. For some counties you'll find quite a list of resources and for others only a few.
Finding aids in the Archives include more detailed information about each type of record. The finding aids are organized by record group.
The counties for which guides are currently available are: Clinton, Eaton, Ingham, Ionia, Jackson, Livingston, Kent, Ottawa, Shiawassee, Washtenaw and Wayne. You can find them here.
Records for some counties are housed at the WMU Archives (and are noted on the list) so be sure to pay attention so you travel to the correct location to view your records of interest. Note: walk-in research at the WMU Archives has been suspended until they move into their new building in October.