As discovered on FamilyTreeDNA.com, two descendants from John Taylor Allen, b1754 and Mary Butler, b1753, share DNA.
Predicted Relationship: 2nd-4th cousins
Actual Relationship: 5th cousins
Shared DNA: 45 cM across 2 segments
Path A: John & Mary Allen -> Lemuel Allen, b1782 -> George Allen, b1813 -> George Allen, b1850 -> Warren Allen, b1888 -> John Allen, b1913 -> FamilyTreeDNA.com user John Allen.
Path B: John & Mary Allen => Willis Allen, b1790 -> Coonard Allen, 1820 -> William Allen, b1851 -> Addison Allen, 1899 -> Gloria Allen, b1934 ->FamilyTreeDNA user Joel Etherton