Henderson Descendant and Relationship Charts

In addition to the Y-DNA results from Russell and William, and the mtDNA results from the direct female lines down from Margaret McEWAN, and Amelia MILLAR, we have 5 FamilyFinder tests from descendants of Archibald and Margaret (McEWAN) HENDERSON, one from daughter Margaret, and four from son James (two each from daughter Margaret and son William).
To date (Oct 2013) this has proven that a Tasmanian line of DUNCANSONs, suspected to be a branch of the McEWAN/FISHER line, is indeed genetically related, but as yet, no real hints as to where Archibald came from.
Even the Y-DNA results have ended up with no close matches, and down a branch of the Y-DNA R1 haplogroup tree where we've run out of known branches to bring us closer to genealogical timeframes to give us any further hints.
Participants from other sons of Archibald and Margaret: William, John, Archibald, are still being sought.
Only Archibald looks likely to have any direct male line HENDERSONs left for Y-DNA comparisons but all appear to have living descendants able to help by partaking in a FamilyFinder test to confirm our papertrails and to see what matches may ensue.