Rensselaer County Genealogy Records

Rensselaer County genealogy records span from 1791 to the present day, with the county seat in Troy serving as the main hub for family history research. The county was carved from Albany County in 1791 and sits on the east bank of the Hudson River. Researchers can tap into land records, court files, naturalization papers, census data, and probate documents held by the county clerk, surrogate's court, and several local history groups. Troy's role as a major industrial city in the 1800s means the records here cover a wide range of families, from early Dutch settlers to waves of Irish, German, and French-Canadian immigrants who came to work in the collar and iron industries.

Rensselaer County Clerk Records

The Rensselaer County Clerk at 105 Third Street, Troy, NY 12180 is the primary stop for genealogy research in this county. The office holds land records from 1791 to the present, along with mortgages going back just as far. You can call them at (518) 270-4080.

Naturalization records here cover two time spans that overlap a bit. The main set runs from 1824 to 1908, with a second listing of naturalization and petition certificates from 1844 to 1949. Declarations of intent also cover 1844 to 1949. These are useful for tracking immigrant ancestors who came through the Troy area. Marriage licenses on file run from 1908 to 1935, which lines up with the state mandate that had county clerks keep these records during that window.

Court records are a strong point here. The clerk holds Supreme Court records from 1791 to the present, wills from 1899 to 1988, dissolvement records from 1829 to 1890, records in bankruptcy from 1878 to 1922, and sheriff's certificates of sale from 1857 to 1965. Veterans discharges start in 1944. Business records include certificates of incorporation and assumed business names from 1791 on. The office is open Monday through Friday, 8:30 AM to 5:00 PM, with extended hours on Thursday until 7:00 PM.

New York State Census originals for Rensselaer County are available for 1855, 1865, 1875, 1905, 1915, and 1925. The clerk also has census records for the City of Troy and surrounding towns. These fill in gaps between federal census years and can give you details about birthplace, occupation, and household makeup that the federal records sometimes miss.

Probate and Estate Records in Rensselaer County

The Rensselaer County Surrogate's Court at 1504 Fifth Avenue, Troy, NY 12180 keeps probate records from 1794 to the present. Call (518) 285-6100 for details on how to request files. Probate records include wills, letters testamentary, letters of administration, and estate inventories.

These files can be a gold mine for genealogy. A will from the 1800s might name a spouse, children, grandchildren, and even in-laws. Estate inventories list personal property and sometimes mention land in other counties or states, which can help you trace family movement. Guardianship records are here too, and they often show the ages of minor children at the time of a parent's death.

For older probate material, the Rensselaer County Historical Society holds original probate records from 1794 to the early 1900s. Some of these duplicate what the court has, but the historical society copies may be easier to access for casual research. Colonial-era probate records from before 1791 would be found in Albany County records, since Rensselaer was part of Albany until that year.

Rensselaer County Historical Society Genealogy Collections

The Rensselaer County Historical Society at 57 Second Street, Troy, NY 12180 is a key resource for family history work in this county.

The society maintains a broad set of materials that go well past what the county clerk holds. Their collection includes business records, diaries and letters, maps and atlases from the early 1800s through the 1990s, photographs, scrapbooks, city directories, and published county and family histories. Social and labor histories are here too, which is helpful if your ancestors worked in Troy's factories. You can reach the research staff at (518) 272-7232 or email research@rchsonline.org to set up a visit.

Town and village histories in the collection cover the smaller communities of Rensselaer County. If your family lived in places like Hoosick, Schaghticoke, Pittstown, or Grafton, this is where you want to look for local context and neighborhood-level records that the county offices may not have.

Troy Public Library Genealogy Resources

The Troy Public Library at 100 Second Street, Troy, NY 12180 houses the Troy Room Collection, a dedicated local history and genealogy section that complements the county records nicely.

The Troy Room holds books and periodicals on local history, biographies, census microfilm, church and cemetery records, city directories, immigration books, and naturalization record microfilms. Military records, school records, scrapbooks, and newspaper vital record indexes are also in the collection. There is a Local History and Portrait Index that can help you find images of ancestors. The library phone number is (518) 274-7071.

City directories for Troy are particularly useful here. They list residents by name and address, often noting occupation. If you can find your ancestor in a string of city directories across several years, you can piece together when they arrived, where they lived, and what they did for work. Newspaper indexes can point you to obituaries, marriage notices, and other life events that may not show up in official records.

Vital Records for Rensselaer County Genealogy

New York State began requiring statewide vital records registration in 1880, though compliance was spotty for the first few decades. For Rensselaer County, the NYS Department of Health holds birth, death, and marriage records from that point forward. Genealogy copies are available for birth records over 75 years old (if the person is deceased), death records over 50 years old, and marriage records over 50 years old (with proof both spouses are deceased).

Fees start at $22 for a three-year search. Processing times can stretch to eight months or more. For earlier vital records, check church registers and town clerk files. Many Troy-area churches kept baptism, marriage, and burial records that predate state registration.

State Archives and Rensselaer County Research

The New York State Archives in Albany is just across the Hudson River from Troy. This makes it easy to combine a trip to the Rensselaer County Clerk with a visit to the state archives. You can use vital records indexes on microfiche, browse land patents, and access census records for the county. The New York State Library in the same building has family histories, reference guides, and the FamilySearch collection. Both are free to use with a photo ID.

New York State Census records for Rensselaer County fill in years between federal censuses. These can list birthplace, occupation, and other details. The state census years with surviving records for this county include 1855, 1865, 1875, 1905, 1915, and 1925.

Cities in Rensselaer County

This city in Rensselaer County has its own genealogy resource page.

Nearby Counties

Counties near Rensselaer County with their own genealogy record collections.