Listed record inventories
Selected holdings and indexes for Ontonagon County, checked against the repository descriptions linked below. Date spans may contain gaps; an index is not a complete set of original records.
Cemetery Records
- Ontonagon County files · RG 83-531968 to 1976
Court Records
- Calendars · RG 89-465*1865 to 1891
- Case files · RG 89-465*1865 to 1891
- Chancery journal · RG 89-465*1874 to 1891
- Chancery order book · RG 89-465*1863 to 1891
- Chancery rule book · RG 89-465*1875 to 1891
- Common rule book · RG 89-465*1864 to 1891
- Journal · RG 89-465*1849 to 1891
- Transcript of judgments · RG 89-465* District Court of Upper Peninsula (U.S.):1869 to 1891
- Calendar · RG 89-465*1849 to 1864
- Case files · RG 89-465*1849 to 1864
- Journal · RG 89-465*1858 to 1867
Land Records
- Rural Property Inventory · RG 72-761936 to 1942
Military Records
Naturalization Records
- Court order book · RG 2002-611930 to 1953
- Declarations of Intention · RG 2002-611848 to 1952
- Depositions · RG 2002-611923 to 1938
- Index cards · RG 2002-61circa 1850 to 1950
- Index to Declarations · RG 2002-611854 to 1952
- Naturalization records · RG 2002-611853 to 1906
- Petitions · RG 2002-611906 to 1953
- Second papers · RG 2002-611856 to 1935
Tax Records
- Tax rolls · RG 2023-861888 to 1987
See the repository's descriptions and search options
Repository access note: Selected holdings described by the Archives of Michigan. Preserve the record-group (RG) reference when requesting records. Some collections are held at partner repositories; consult the guide before traveling. Asterisks and other qualifiers refer to access or location notes in that guide. Some records have privacy restrictions or require proof of death. A date span may contain gaps and does not establish that images are online.
Sources: the catalogs and repository descriptions linked on the entries above. Selected inventories do not establish complete coverage of every record type or online access to original documents. Read the repository access note for source dates and limitations.
Where to find the records
- Find Ontonagon County's official website
We haven't checked this county's website yet, so this opens a web search. Look for an address ending in .gov, then find the county clerk, the register of deeds and the probate court.
- The county clerk
Births, deaths and marriages registered in the county, and court records.
- The register of deeds
Deeds, mortgages and other land records.
- The probate court
Wills, estates and guardianships.
- The Archives of Michigan
In Lansing: state and county records, and Michigan death certificates from 1897 to 1952 online at Michiganology.
- Archives of Michiganfree
The state archives in Lansing, with county and state records, military records and Michigan death records.
- FamilySearch Catalogfree
Search by place for "Michigan, Ontonagon" to find filmed and digitized records, many viewable free online with a FamilySearch account.
Offices change their hours and access rules; call before you visit.
Boundaries and parent counties
Formed from: Chippewa County, Michilimackinac County (now Mackinac)
Check the parent counties for earlier records: Chippewa County, Mackinac County
Later formed partly from Ontonagon County: Gogebic County, Houghton County
Records stay with the county that created them. If your ancestor lived here before 1843, search the parent county. The Atlas of Historical County Boundaries shows each boundary change.
Research tip
Michigan began registering births and deaths in 1867, much earlier than most states, with county clerks keeping the registers and sending copies to the state. Ask the county clerk for the early registers.