This source supports the broader patrilineal Simpson line and should not be used as standalone proof of every immediate relationship.
Source file
Y-DNA Evidence for the Simpson Patrilineal Line
Y-DNA evidence supporting the broader Simpson patrilineal line back to William Simpson.
People in this story
- lowell-leon-simpson-1904-1981
- william-simson
Source Citation
Paternal relationship is confirmed by Y-chromosome DNA test results on FamilyTreeDNA. Davis Simpson, FTDNA kit B24208, and Lee Simpson, FTDNA kit 436237, match with 6 Big Y STR differences, confirming their direct paternal lines back to their most-recent common ancestor, William Simpson. Both Davis and Lee belong to haplogroup R-FGC39762. Citation generated by the WikiTree DNA Confirmation app, version 3.09, updated 25 February 2026.