↑ "Massachusetts Births and Christenings, 1639-1915," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:V5N7-QQC : 4 December 2014), Samuel Eells in entry for Robert Lenthall Eells, ; citing , ; FHL microfilm 0014791, 0496902 IT 1.
Colonial Soldiers and Officers in New England, 1620-1775. (Online database: AmericanAncestors.org, New England Historic Genealogical Society, 2013). View with NEHGS Subscription. Text: Ens. Samuel Eels, West Indies, Dates of Service: 4/24/41-2, Length of Service: [Blank] Company: Capt. John Winslow.
Eells, William W. Eells Family History in America, 1633-1952. Place of publication not identified: publisher not identified, 1900. 
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It may be possible to confirm family relationships with Samuel by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
However, there are no known yDNA or mtDNA test-takers in his direct paternal or maternal line.
It is likely that these autosomal DNA test-takers will share some percentage of DNA with Samuel: