Saginaw County, Michigan Genealogy: Records, Archives, and Where to Search

An Older Boundary Line Than Almost Any Neighbor

Saginaw County genealogy research has an unusual head start: the county’s outline goes back further than almost any of its neighbors’. Territorial Governor Lewis Cass proclaimed Saginaw County’s boundaries on September 10, 1822, though it stayed attached to Oakland County for administration until enough settlers arrived to organize a government of its own on February 9, 1835. Saginaw, the county seat, grew from a fur-trading post that Louis Campau built on the Saginaw River in 1816, three years before the 1819 Treaty of Saginaw ended Native American land claims here and opened the area to White settlement — genealogical research into the Anishinaabe and Ojibwe families who lived here before 1819 runs through tribal and treaty records rather than the county clerk.

That 1822 date matters more than it looks. Saginaw County’s original boundaries were huge — they covered most of what’s now Bay County, part of Midland County, and the northwest corner of Shiawassee County. Bay County split off in 1857, and the line between the two moved again in 1871, 1875, and 1881, each time in Bay’s favor. If a family’s records seem to vanish from Saginaw County in the mid-1800s, check Bay County next; the land didn’t move, the county line did. (Our Bay County guide covers the German colony of Frankenlust, which started in Saginaw County and switched sides in 1881.)

Today Saginaw County borders Bay, Tuscola, Genesee, Shiawassee, Clinton, Gratiot, and Midland counties — worth knowing if an ancestor’s records refuse to show up here and might sit one township over.

What’s on File, County by County

Michigan’s 1867 vital records law applies here the same as everywhere else in the state, but Saginaw County’s own record-keeping goes back further in a few categories.

The probate date is the odd one — county sources list records as early as 1800, decades before Saginaw was even organized, most likely reflecting estate matters handled by a predecessor jurisdiction. Treat that date as a lead worth verifying, not a hard fact.

East Saginaw deserves a note of its own: a separate incorporated city on the river’s east bank until 1890, when it merged with Saginaw City to form today’s Saginaw. A family recorded in “East Saginaw” in an 1870s or 1880s document wasn’t in a different county, just a different city that no longer exists under that name.

Military records run deeper than the table suggests. The 23rd Michigan Infantry organized and mustered at East Saginaw in September 1862, drawing volunteers from a six-county recruiting district; Companies B and E were filled largely with Saginaw County men. Grand Army of the Republic post records and the regiment’s compiled service rosters, both searchable through FamilySearch and the Archives of Michigan, are the fastest route to a Civil War ancestor here.

Cemeteries are well documented for a county this size — Find a Grave lists 42 distinct Saginaw County locations, and the Saginaw Genealogical Society has spent years photographing and indexing them township by township, from Buena Vista and Blumfield to the German cemeteries around Frankenmuth.

Six Starting Points for Saginaw County Research

1. The Saginaw County Clerk handles anything after 1867 (111 S. Michigan Avenue, First Floor, Room 101, Saginaw, MI 48602, (989) 790-5251). Genealogy requests for records over 100 years old must be made in person; a $10 search fee applies, and certified copies run $15 for the first copy.
2. Check the Register of Deeds (same building, (989) 790-5270) for land and real estate records, and the Equalization Department for deed indexes back to 1836.
3. Cross-check FamilySearch’s Michigan collections and the state’s free Genealogical Death Indexing System for deaths between 1867 and 1897 before ordering a certified copy you may not need.
4. Visit the Local History and Genealogy Collection at Hoyt Public Library (505 Janes Avenue, (989) 755-9827). It holds Saginaw city directories from 1866 to the present, newspapers on microfilm from 1853 forward, and a biography index the county clerk’s office itself points researchers toward.
5. Contact a local genealogical society for genealogical resources beyond what’s online. The Saginaw Genealogical Society meets at the LDS FamilySearch Center on North Center Road and maintains its own cemetery database; the Cass River Genealogical Society, based at Frankenmuth’s Wickson Memorial Library, specializes in the German-settled townships and villages east of the city.
6. Try the Castle Museum of Saginaw County History (500 Federal Avenue, (989) 752-2861), home to the Historical Society of Saginaw County, for lumber-era company records, photographs, and the kind of local ephemera that never made it into a searchable database.

Why People Ended Up Here: A Lumber Valley, Then an Auto Town

Saginaw County’s economic history explains its record-keeping better than any single law does. The lumber boom, roughly 1840 through the 1890s, made the Saginaw Valley the leading timber region in the United States for decades. Eighty sawmills lined the river by 1870, floating logs down to the Great Lakes for shipment, and the valley earned an estimated $7 million a year by 1869. That work drew French-Canadian and Scandinavian laborers into mill towns and logging camps well before most of them appear in any vital record.

German Lutheran colonization ran alongside it. Pastor Wilhelm Loehe sent settlers from Franconia, Bavaria, to found Frankenmuth in 1845, followed by Frankentrost in 1847 and Frankenhilf (now Richville) in 1850. A fourth colony, Frankenlust, started here too in 1848, before its township petitioned to join Bay County in 1881; church registers at St. Lorenz and its sister parishes often predate the county’s own vital records for these families. Polish immigration picked up later, in the 1880s and 1890s, concentrated on Saginaw’s south side and drawn mostly from the Austrian and Russian partitions of Poland, a different origin than the Prussian-Polish community that settled Bay City around the same years.

A second wave came with the automobile era in the 20th century. General Motors’ Saginaw Steering Gear division grew out of an old carriage works, and World War II production, including more than 900,000 M1 Carbines and Browning machine guns, drew workers from across the South, among them many African-American families whose descendants are now researching a Great Migration story that runs through Saginaw’s east side.

More Saginaw County Resources

• Saginaw County History Articles — local historical writing indexed under the county hub.
• Bay County, Michigan Genealogy Guide — the companion county, including the Frankenlust story and Bay City’s own lumber-era records.
• Reading Old Cause-of-Death Terms — for making sense of the medical language on 19th-century Saginaw County certificates.

Frequently Asked Questions

When was Saginaw County, Michigan organized? Governor Lewis Cass set its boundaries on September 10, 1822, but the county wasn’t fully organized with its own government until February 9, 1835. Records from the years between usually sit in Oakland County, which administered the area first.

Where can I request a Saginaw County vital record? From the Saginaw County Clerk, 111 S. Michigan Avenue, First Floor, Room 101, Saginaw, MI 48602, (989) 790-5251. Birth and marriage records run from 1867, death records from 1868.

My ancestors lived in what’s now Bay or Midland County before 1857. Where are their records? Check Saginaw County first. Its original 1822 boundaries covered most of present-day Bay County and part of Midland County, and records from before those counties split off are usually filed here.

Does Saginaw County have a genealogical society? Yes, more than one. The Saginaw Genealogical Society meets monthly at the LDS FamilySearch Center on North Center Road, and the Cass River Genealogical Society in Frankenmuth focuses on the German-settled townships in the county’s east.

Why did so many German and Polish families settle in Saginaw County? Timber, mainly. The lumber boom of the 1840s-1890s built entire towns almost overnight, pulling in German Lutheran colonists from 1845 and Polish laborers by the 1880s-90s, alongside French-Canadian and Scandinavian millworkers.