Michigan Institutional Records: Prisons, State Hospitals, and Poor Houses

An ancestor who disappears from the census, or who’s remembered only through a family silence, sometimes turns up in a completely different kind of record: a prison commitment register, a state hospital admission ledger, or a county poor house resident list. I try to approach these carefully — these institutions kept some of the most detailed personal records Michigan ever generated, and some of the most restricted. What follows is what each one recorded, and, just as important, what a researcher can and can’t access today.

Correctional institutions: Jackson, Marquette, and Ionia

Michigan’s oldest state prison, established at Jackson by law in 1838, operated under that name until it became the State Prison of Southern Michigan in 1935; it closed for good on January 4, 2002. The Archives of Michigan holds the institution’s records under several record groups — RG 64-50 is a record of commitment covering 1839–1937, listing an inmate’s number, name, age, term, date received, occupation, offense, county, physical description, and eventual discharge or parole outcome. A broader index, RG 83-86, functions as a single card catalog across Michigan’s three major 19th- and 20th-century correctional facilities — Jackson, Marquette, and Ionia — giving sentence length, dates, identification number, and county of conviction for each name.

Unlike the records covered later on this page, these adult correctional records are generally treated as open. The Archives of Michigan’s own description of its corrections holdings states plainly that the prisoner index cards and registry records — covering roughly 1839 to the mid-1980s — are available to researchers without the restriction placed on juvenile or mental health files.

State hospitals: Kalamazoo, Traverse City, and Pontiac

Michigan built three large state hospitals for the mentally ill in the 19th century, each with its own founding act and its own surviving record group at the Archives of Michigan.

• Kalamazoo — established by the legislature in 1848 at Governor Ransom’s request, with Kalamazoo chosen as the site in 1849. Ninety female patients had already been admitted by the formal opening in August 1859; a men’s ward followed a year later. Renamed Kalamazoo State Hospital in 1911.
• Traverse City — created under Public Act 225 of 1881 as the Northern Michigan Asylum, construction running 1882 to November 1885. Renamed Traverse City State Hospital by Public Act 21 of 1911.
• Pontiac — funded by Public Act 164 of 1873 as the state’s second asylum, opening August 1, 1878, as the Eastern Michigan Asylum with capacity for 330 patients drawn from 20 southeastern Michigan counties. Renamed Pontiac State Hospital in 1911.

Each hospital’s surviving record group includes patient registers, admission and discharge ledgers, and casebooks, plus separate administrative material — treasurer’s records, employee registers, superintendent reports. That distinction matters for access: mental health case files are confidential by statute, closed under Michigan’s Public Act 368 of 1978, while purely administrative records are generally open. Per MDHHS’s own guidance, requesting an ancestor’s specific patient record — your own or a deceased relative’s — requires formal authorization through the department’s Bureau of Legal Affairs, with documented proof of relationship, since confidentiality doesn’t lapse at death.

County poor houses and the State Public School at Coldwater

Before Social Security and modern welfare programs existed, Michigan counties were legally responsible for supporting their own poor. An 1830 territorial act put that responsibility on each county, and most eventually purchased land and built what was called, depending on the era and the county, a poor house, county farm, or county infirmary — a working farm where elderly, disabled, or destitute residents lived, sometimes contributing labor in exchange for their keep. Kalamazoo County’s version, purchased in 1849 from the failed Alphadelphia socialist community, operated in some form until 1970. Records typically take the shape of admission registers or annual censuses of residents, and many counties’ poor farm cemeteries have separately documented burial lists, since a poor farm death frequently generated no other record at all.

Children were a particular problem for this system, and Michigan responded in 1871 by authorizing the State Public School at Coldwater — the first state-level institution in the country built specifically to receive dependent and neglected children, ages four to sixteen, out of county poorhouses rather than let them grow up inside an adult almshouse. It opened May 21, 1874, and at least ten other states later copied Michigan’s cottage-based model. Records of children who passed through Coldwater are held in fragmentary form and are not fully open to the public; access is generally limited to descendants submitting a documented request.

Reform schools: Lansing and Adrian

Michigan operated two youth reformatories with a long institutional lineage. The boys’ facility in Lansing began in 1855 as the House of Correction for Juvenile Offenders, becoming the Michigan State Reform School (1859), the Industrial School for Boys (1893), the Boys Vocational School (1925), and finally the Boys’ Training School before closing in 1972. Its surviving records at the Archives of Michigan include registers of inhabitants, dispositions, and general records spanning 1893–1946, giving a boy’s name, age, home address, offense, time in the school, and eventual placement — though earlier narrative case files remain restricted.

The girls’ counterpart opened in Adrian in 1879 as the State Industrial Home for Girls, later the Girls’ Training School and then the Adrian Training School, with records at the Archives of Michigan covering 1880–1941 under record group 58-6. Because these facilities held minors, the state’s own guidance on youth records — Circular No. 8 — treats most of this material as restricted, generally accessible only to the individual named in the record or through the Bureau of Juvenile Justice.

Researching an institutionalized ancestor, respectfully

An ancestor’s time in one of these places almost always reflects the limits of the era’s medicine, economy, or social safety net rather than a personal failing worth hiding. In my own research I’ve found a poor house entry once turned out to be the only surviving record of a great-grandmother’s final years — poverty, untreated illness, and a lack of any other support system sent people to these institutions far more often than crime or scandal did.

1. Start with the county probate court, not the institution itself — commitments to a state hospital or poor house were typically ordered through probate proceedings in the ancestor’s home county, and that file will name the destination institution.
2. Identify the correct record group before contacting the Archives of Michigan — prison, hospital, and reform school holdings are organized separately, and giving a specific RG number speeds up any request considerably.
3. Expect a documented-relationship requirement for anything mental-health or juvenile related; MDHHS and the Bureau of Juvenile Justice both require proof of direct descent, sometimes plus a court order, before releasing a restricted file.
4. Check the local county hub for the relevant historical society — poor farm registers and cemetery records were often never transferred to the state and survive only locally.
5. Cross-reference cause of death and medical terminology against a period-appropriate reference once you locate a record, since 19th-century diagnoses used different, often unfamiliar language — see our guide to old disease names. For every other Michigan record type, see the full records overview.

Frequently asked questions

Are Michigan prison records public? Mostly, yes. The Archives of Michigan describes its historical prisoner index cards and commitment registers, covering Jackson, Marquette, and Ionia, as open and unclassified.

Are Michigan state hospital patient records public? No. Mental health case files are closed by statute (Public Act 368 of 1978). A descendant can request an ancestor’s record through MDHHS with documented authorization.

What is a Michigan “poor farm” or “county infirmary”? A county-run institution for indigent, elderly, or disabled residents, operating from roughly the mid-1800s through the early-to-mid 20th century under an 1830 act that made counties responsible for their poor.

Where do I request Michigan institutional records? The Archives of Michigan in Lansing for most historical prison and administrative records; MDHHS for closed mental health facilities; county historical societies for local poor-farm material.

Does MI Family History host an inmate or patient index? No. This page explains what each institution recorded and which agency or archive holds the originals today.