Who is Adam?

Does anyone have any evidence as to who the parents of Adam HENDERSON are?

Adam was:

• born abt 1815 Southdean, Roxburghshire, 
• married Janet EASTON in Oxnam 2 days prior to the 1841 census, 
• lived Swinside, Oxnam (1841), 
• popped up in West Middle, Cavers in 1851, 
• Hallrule Lodge, Bedrule (1861) and 
• Newton, Bedrule (1871) 
• before emigrating in 1873 with Janet and son George, 
• settling in Alma, Jackson Co., Wisconsin where several family already were.

Why am I asking?
I'm investigating an excellent DNA match between a descendant of Adam (via son Peter), myself, and two of my cousins (2nd and 3C1R) where we all descend from Peter SINTON & Jane WIGHT.
The most likely line of the match's pedigree that accounts for this is that of Peter Oliver HENDERSON who turns out to be the son of Adam and Janet (EASTON) HENDERSON

The indications currently are that Adam is highly likely to belong to Peter SINTON's family somewhere.
But where?

There's an 1808 marriage of an Oliver HENDERSON (Hawick) to an Isabel SINTON (Cavers) in the Cavers Parish register, which looks promising.
Although there's no further info known, the couple fits the timeframe, place, and naming pattern to be Adam's parents.
If Adam and Janet's son Peter Oliver was named for both Adam and Janet's fathers we do have a bit of a problem as the above Peter SINTON's sister Isabel, who is of an age, is accounted for and I don't know about any other Peters.

So, I'm on the look out for others claiming descent from any of the above who may already have joined in the fun of dna testing for genealogy, or be prepared to, so we can compare results and
confirm that the dna match is indeed pointing to Adam.
Missing bits of the papertrails would also be most welcome - a Wisconsin death record/obit for Adam naming his parents? The fate of Oliver HENDERSON and Isabel SINTON?

Check out Adam on FamilySearch  FamilyTree for some of the descendants identified / linked to date.

Potential matches/matches are welcome to join my FFLornaHen autosomal DNA project on FamilyTreeDNA, or if you are on GEDMatch.com please get in touch with your id number there so we can check out any potential connections.