The Edward III line is through his wife, Jean Somerville, but Leo also has a Bruce line for James the 13th.
Orcutt, Samuel, Rev. (1886): A History of the Old Town of Stratford and the City of Bridgeport, Connecticut, Part II, Genealogies. Published by the Fairfield County Historical Society. vol. 2, page 1123
Rhode Island Roots, Vol.19, #1, March 1993; Author: Jane Fletcher Fiske, F.A.S.G.; Publication: The Family of Giles(2) Slocum of Dartmouth, Mass., and Newport, RI: A corrected Account Based on New Evidence. Abbreviation: Rhode Island Roots, Vol.19, #1, March 1993
It may be possible to confirm family relationships with Archibald 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 DNA with Archibald: