His death record indicates he died on 8 Feb 1933 and not 10 Feb 1933 as listed on Find a Grave.
Sources
↑ 1.01.1 "United States Census, 1850," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MCY2-7MY : 23 December 2020), Lewis Oatman in household of Leonard Oatman, Adams, Jefferson, New York, United States; citing family , NARA microfilm publication (Washington, D.C.: National Archives and Records Administration, n.d.).
↑ 2.02.1 "New York State Census, 1855," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K6QK-GB1 : 3 March 2021), Lewis Oatman in household of Leonard Oatman, E.D. 2, Adams, Jefferson, New York, United States; citing line #16, family #166, county clerk offices, New York; FHL microfilm 895,241.
↑ 3.03.1 "United States Census, 1860", database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MC7F-TPK : 18 February 2021), Lewis Oatman in entry for Leonard Oatman, 1860, Adams, Jefferson, New York, United States.
↑ 4.04.1 "New York State Census, 1865," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QVNV-W8J7 : 8 March 2021), Lewis Oatman in household of Leonard Oatman, District 02, Adams, Jefferson, New York, United States; citing Census, p. 34, citing multiple county Clerks; Warren and Lewis County Board of Supervisors; multiple counties in New York; Utica and East Hampton Public Libraries, New York.
↑ 5.05.1 "United States Census, 1870", database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:M8N7-2HC : 29 May 2021), Lewis J Oatman in entry for Leonard Oatman, 1870, Adams, Jefferson, New York. Page. 39. Household ID 389. Affiliate Name The U.S. National Archives and Records Administration (NARA). Affiliate Publication Number M593. GS Film Number 000552443. Digital Folder Number 004274980. Image Number 00045. Indexing Project (Batch) Number N01589-3.
↑ 6.06.1 "New York State Census, 1875," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:VT82-LP2 : 18 February 2021), Lewis Oatman in household of Leonard Oatman, Adams, Jefferson, New York, United States; citing p. 5, line 11, State Library, Albany; FHL microfilm 895,248.
↑ "New York State Census, 1925," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:KSSD-6GX : 8 November 2014), Louis J Oatman, Adams, A.D. 01, E.D. 02, Jefferson, New York, United States; records extracted by Ancestry and images digitized by FamilySearch; citing p. 12, line 04, New York State Archives, Albany.
Find a Grave, database and images (https://www.findagrave.com/memorial/125176106 : accessed 22 May 2022), memorial page for Lewis J Oatman (1850–10 Feb 1933), Find A Grave: Memorial #125176106, citing Union Cemetery, Adams Center, Jefferson County, New York, USA ; Maintained by B Rozpad (contributor 50074804).
"United States Census, 1870," Lewis J Oatman in household of Leonard Oatman (New York, United States)
Name: Lewis J Oatman
Estimated Birth Year: 1851
Gender: Male
Age in 1870: 19y
Color (white, black, mulatto, chinese, Indian): White
Birthplace: New York
Home in 1870: New York, United States
Household Gender Age
Leonard Oatman M 60y
Huldah Oatman F 55y
Adelbert Oatman M 30y
Lewis J Oatman M 19y
Oriette Oatman F 18y
Jairus Oatman M 14y
Source Citation
"United States Census, 1870," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/M8N7-2HC : accessed 26 April 2012), Lewis J Oatman in household of Leonard Oatman (New York, United States).
"United States Census, 1860," Lewis Oatman (, Jefferson, New York)
Name: Lewis Oatman
Residence: , Jefferson, New York
Ward: Adams
Age: 9 years
Estimated Birth Year: 1851
Birthplace: New York
Gender: Male
Page: 29
Family Number: 247
Film Number: 803761
DGS Number: 4235929
Image Number: 00584
NARA Number: M653
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Name: Lewis J Oatman Estimated Birth Year: 1851 Gender: Male Age in 1870: 19y Color (white, black, mulatto, chinese, Indian): White Birthplace: New York Home in 1870: New York, United States Household Gender Age Leonard Oatman M 60y Huldah Oatman F 55y Adelbert Oatman M 30y Lewis J Oatman M 19y Oriette Oatman F 18y Jairus Oatman M 14y
Source Citation "United States Census, 1870," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/M8N7-2HC : accessed 26 April 2012), Lewis J Oatman in household of Leonard Oatman (New York, United States).