Jefferson County Genealogy

Jefferson County genealogy records date back to 1805 when the county was formed from Oneida County. Researchers tracing family roots in the North Country can search for land deeds, court records, marriage files, and naturalization papers at the county clerk's office in Watertown. The Surrogate's Court holds probate records from the same year. Vital records indexes on state microfiche are available at the Flower Memorial Library. Jefferson County genealogy searches cover a wide range of record types useful for building family trees and confirming ancestral connections to this part of New York.

Jefferson County Clerk Records

The Jefferson County Clerk is the main office for genealogy research in the county. Land records start in 1805 and run to the present day. The clerk also keeps court records from that same year, including Supreme Court and County Court filings. You can find marriage records from 1908 to 1935 on file here. Naturalization records go from 1805 through the 1950s, which makes this office a key stop for anyone looking into immigrant ancestors who settled in the North Country region.

The clerk's office sits at 175 Arsenal Street in Watertown. You can call (315) 785-3025 to ask about hours or what you need to bring for a visit. Online access to land records is through SearchIQS. This tool lets you look up deeds and mortgages from home, which can save a trip to the courthouse if you just need to check a name or date. New York State Census records for Jefferson County are on file for the years 1825 through 1925. These census rolls list heads of household and other details that help fill gaps in federal census data.

The Jefferson County Clerk's website has details on record access and search tools.

Copy fees and search costs apply when you request documents from the clerk's office in person or by mail.

Probate Records in Jefferson County

The Jefferson County Surrogate's Court handles probate matters for the county. This court has records going back to 1805. Wills, letters testamentary, letters of administration, and estate settlement papers are all on file here. If your ancestor died in Jefferson County, the Surrogate's Court is where you check for a will or estate filing.

Under the Surrogate's Court Procedure Act, each county in New York has its own surrogate's court that proves wills and settles estates. To get copies of probate records, send a written request by U.S. mail. Include the name of the person who died and the date of death. The court does not take email requests for these records. The office is at 175 Arsenal Street in Watertown, and the phone number is (315) 785-3026. Search and copy fees will apply to any documents you ask for.

FamilySearch has microfilmed some of the older surrogate's court records from Jefferson County. Check the FamilySearch catalog to see what years are available online or on film. Many pre-1900 probate records have been digitized and can be viewed for free.

Note: Estate records more than 75 years old are generally easier to access than more recent filings.

Jefferson County Vital Records

Birth and death records for Jefferson County are kept by the town clerk in each town where the event took place. The state started collecting vital records in 1880 for deaths and 1881 for births and marriages. Early compliance was spotty, so some records from the first few decades are missing. The New York State Department of Health holds copies of vital records filed outside New York City. Fees start at $22 for a three-year search period and go up from there based on the range of years.

Under Public Health Law Sections 4173 and 4174, birth certificates open up after 75 years if the person is known to be dead. Death certificates are available after 50 years. Marriage certificates need 50 years and both spouses must be dead. Direct-line descendants can get records sooner if they show proof of the family link. Processing a genealogy request through the state can take eight months or more, so contacting the local town clerk first is often faster.

Genealogy at Flower Memorial Library

The Flower Memorial Library in Watertown is one of the 11 official sites in New York State where you can use vital records index microfiche. These indexes cover births, marriages, and deaths outside New York City, starting in 1880. The library also has local history collections that can help fill in details about families who lived in Jefferson County.

The library is at 229 Washington Street in Watertown. Call (315) 785-7705 for hours and access rules. The microfiche indexes are open to the public at no charge. You cannot borrow or copy the indexes themselves, but you can use the information in them to request actual certificates from the state or local registrar. Staff can help you get started with the indexes if you are new to genealogy research.

State Archives and Jefferson County

The New York State Archives in Albany holds records that connect to Jefferson County genealogy research. Vital records indexes on the 11th floor of the Cultural Education Center cover the whole state outside New York City. You can visit without an appointment. Bring a photo ID and fill out a registration form. If others are waiting, use is limited to one hour.

Colonial wills from 1665 to 1815 are at the State Archives on microfilm. Many have been digitized and are free to New York residents through Ancestry.com New York. The Archives also holds military records from the colonial era through World War I, land records going back to Dutch colonial times, and naturalization abstracts. Under Arts and Cultural Affairs Law Section 57.05, the State Archives acquires and preserves official records. Access rules come from NYCRR Title 8, Sections 188.24 through 188.28.

The New York State Library is in the same building. Its Local History and Genealogy section has family histories, reference works, and the FamilySearch CD-ROM series. Materials must be used on-site.