Fact: Burial Sandy Lawn Cemetery, Calcium, Jefferson County, New York, USA, GPS (lat/lon):, 44.00994, -75.89223
"United States Census, 1850," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MCYK-4NY : 9 November 2014), Luther Stedman, Cape Vincent, Jefferson, New York, United States; citing family 534, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.).
*Find A Grave: Memorial #83640490 for Laura Warner Stedman (1798 - 1876) - Find A Grave Memorial.
It may be possible to confirm family relationships with Laura by comparing test results with other carriers of her mitochondrial DNA.
However, there are no known mtDNA test-takers in her direct maternal line.
It is likely that these autosomal DNA test-takers will share DNA with Laura: