Michigan Civil War Records: A Guide to Finding Your Soldier Ancestor

What Michigan sent to the Civil War

Michigan supplied close to 90,000 men to the Union war effort between 1861 and 1865, out of a state whose entire 1860 population was under 750,000. That works out to roughly 23 percent of the state’s military-age men — a number that still surprises people who think of Civil War Michigan as a quiet, faraway state. It wasn’t. When President Lincoln’s first call went out for one regiment, Governor Austin Blair sent seven.

Those men filled 30 infantry regiments, 11 cavalry regiments, a regiment of engineers and mechanics, a regiment of sharpshooters, a light artillery regiment plus several independent batteries, and the 102nd United States Colored Troops (originally organized as the 1st Michigan Colored Infantry). Smaller numbers scattered into units credited to other states, plus roughly 600 men in the Union Navy. I’ve spent a fair amount of time in these records myself, and the first lesson is always the same: figure out which of those units your ancestor served in before you touch anything else, because almost every downstream record is filed by regiment and company.

The human cost was steep. A Roll of Honor drawn up by order of the Michigan Legislature in 1869 lists 14,855 names of the dead; the widely cited tally from historian Frederick Dyer puts the figure at 14,753. Either way, disease outpaced combat by a wide margin — the Bentley Historical Library’s breakdown shows 4,175 men killed or mortally wounded against 9,230 who died of disease in camps, hospitals, and prisons. If a family story says an ancestor “died in the war” with no battle attached, disease is the safer first guess.

Michigan’s best-known regiments

Three units come up constantly in Michigan Civil War research, not because they were unique in structure but because they left an outsized paper and battlefield record.

The 1st Michigan Infantry organized at Detroit and mustered in on May 1, 1861, for a three-month term — Michigan’s only three-month regiment, and the first Western regiment to reach Washington, prompting Lincoln’s remark, “Thank God for Michigan!” It fought at First Bull Run that July, then reorganized for a three-year term that September and served with the Army of the Potomac through Gettysburg, the Wilderness, and on to Appomattox, where it was present for Lee’s surrender.

The 24th Michigan Infantry, organized at Detroit on August 15, 1862, joined the famous Iron Brigade alongside the 2nd, 6th, and 7th Wisconsin and the 19th Indiana. At Gettysburg on July 1, 1863, the 24th went into action with 496 officers and men and suffered 363 casualties — a loss rate over 70 percent, among the worst any Union regiment absorbed that day. Survivors were later chosen as part of the honor guard at Lincoln’s funeral.

The Michigan Cavalry Brigade, nicknamed the Wolverines, formed on December 12, 1862, from the 5th, 6th, and 7th Michigan Cavalry, later joined by the 1st. Brigadier General George Armstrong Custer took command on June 29, 1863, days before Gettysburg, where his cry of “Come on, you Wolverines!” became the brigade’s rallying line during the cavalry fight east of town on July 3. The brigade fought in every major Army of the Potomac campaign from there to Appomattox and absorbed more battle casualties than any other Union cavalry brigade of comparable size.

Six record types worth your time

Finding a specific Michigan soldier usually means working through some combination of these record types, roughly in the order I’d tackle them.

1. State service records (muster and descriptive rolls). The Michigan Adjutant General compiled these into the 46-volume Record of Service of Michigan Volunteers in the Civil War, 1861–1865 — researchers call them the “Brown Books.” They’re organized by regiment, so you need a unit first. Digitized volumes are available through HathiTrust, and the original descriptive rolls are held at the Archives of Michigan, with growing coverage on Michiganology.
2. Federal compiled military service records (CMSRs). Built by the War Department in the 1890s from muster rolls and other originals, these are held at the National Archives and are the standard proof-of-service document. Many are digitized through Fold3 and Ancestry, and indexes exist for both white and U.S. Colored Troops units. Michigan’s Black regiment has its own research path — see the guide to the 1st Michigan Colored Infantry, later redesignated the 102nd USCT.
3. Pension files. Filed by the veteran or, after his death, by his widow or minor children, these are usually the thickest and most personal records in the set — affidavits, marriage proof, physical descriptions, sometimes decades of correspondence. They’re held at the National Archives under Record Group 15 and indexed by two microfilm series covering 1861 through 1934. A printed shortcut exists for the 1880s: the Senate’s 1883 list of pensioners on the roll names Michigan pensioners county by county, including widows and dependent parents.
4. Veteran censuses. Two separate efforts count here: the federal Special Schedule of the 1890 census, most of which was destroyed in a 1921 fire, and Michigan’s own state census of June 1, 1894, which counted 42,544 Civil War soldiers living in the state at the time. The 1894 count is the more complete Michigan-specific resource by far, and it’s covered in detail on this site’s 1894 veterans census guide.
5. Grand Army of the Republic (GAR) post records. The GAR was the dominant Union veterans’ organization, and its local posts kept membership rosters and meeting minutes. Crucially for genealogists, they also kept decoration and burial records for members’ graves. The Sons of Union Veterans’ Department of Michigan has digitized records from roughly 87 Michigan posts, totaling close to 19,000 membership entries so far.
6. Cemetery and headstone records. Government-issue markers, GAR bronze stars, and family stones each carry a shorthand of rank, company, and regiment. Find a Grave and BillionGraves are the two major crowdsourced photo databases, and the SUVCW’s graves registration project adds burial data that predates either site by decades. For one county’s worth of detail on reading and locating these, see the Midland County Civil War graves guide. For soldiers who died during the war, the federal Roll of Honor interment records list burial places by cemetery.

Where to find each of them

How to start if you only have a name

Work in this order, and don’t skip steps even if you’re tempted to jump straight to a pension file:

1. Search the Michigan Soldiers and Sailors index (drawn from the 46-volume Record of Service) or the 1894 veterans census to pin down a regiment and company.
2. Pull the state descriptive roll for that company through Michiganology or the Archives of Michigan to confirm enlistment date, physical description, and any transfers.
3. Order the federal compiled service record from NARA, or check whether it’s already indexed on Fold3 or FamilySearch.
4. Check the pension index (T288/T289) for a pension file — if one exists, request it; these are often the richest single document.
5. Search GAR post rosters for the soldier’s home county through the SUVCW Department of Michigan project.
6. Look for a grave on Find a Grave and BillionGraves, cross-referencing the SUVCW graves registration database if the cemetery search comes up empty.

One thing I’d flag from experience: don’t assume a soldier died where his unit was fighting. Plenty of Michigan men mustered out, came home, and are buried in the township cemetery down the road from where they farmed for another forty years. The war record and the burial record are often decades and several hundred miles apart.

University and library collections worth checking

Beyond the government-record holders, a couple of university libraries are worth a separate search, especially if your soldier left behind a diary, letters, or a photograph rather than just an official form.

The Bentley Historical Library at the University of Michigan holds the alphabetical Michigan Soldier and Sailor Index, the general name index to the 46-volume Record of Service, cataloged with a link through to the digitized volumes on HathiTrust. It also holds original diaries, letters, and regimental histories donated over the decades, plus a standing bibliography checklist of published Michigan regimental histories and personal narratives. Its holdings also include the Arthur R. Kooker papers, assembled by a University of Southern California historian researching Michigan’s antislavery movement, which touch on some of the same abolitionist networks that later fed Black enlistment into the state’s colored regiment.

The William L. Clements Library, also at the University of Michigan, holds the James S. Schoff Civil War Collection: thousands of soldiers’ letters, hundreds of regimental histories, and Civil War-era photographs, arranged by state and searchable through the library’s own finding aids and catalog. It’s a manuscript collection rather than a government record series, so access usually means visiting or requesting scans rather than pulling a digitized file online — but for a soldier whose official paperwork is thin, a surviving letter home can say more than any muster roll.

Frequently asked questions

How many men did Michigan send to the Civil War? Roughly 90,000, by most tallies — about 23 percent of the state’s 1860 military-age male population. That includes about 1,600 Black Michiganders who served in the 102nd United States Colored Troops, plus smaller numbers who enlisted directly into units from other states.

How many Michigan soldiers died in the war? Figures vary by source because 19th-century record-keeping wasn’t perfectly consistent. A Roll of Honor compiled under order of the Michigan Legislature in 1869 lists 14,855 names; historian Frederick Dyer’s later count puts it at 14,753. The Bentley Historical Library breaks the toll down as 4,175 killed or dead of wounds and 9,230 dead of disease — disease killed roughly twice as many Michigan men as combat did.

What’s the fastest way to confirm my ancestor’s regiment before digging into records? Start with the Michigan Soldiers and Sailors index derived from the 46-volume Record of Service of Michigan Volunteers, searchable through HathiTrust, or search the 1894 state veterans census if he was still alive that June. Either one gets you a regiment and company letter, which you need before any of the other record types become useful.

Is there one central place online with every Michigan Civil War soldier’s file? No single free database covers everything. Michiganology (Archives of Michigan’s digital platform) holds the state-level muster and descriptive rolls; the National Archives holds federal compiled service records and pension files; FamilySearch and Fold3 host searchable indexes to both. Expect to check at least two or three of these for a complete picture.