Jay,
I match on Gedmatch with several of the people you list above in your 4/29/17 message (including the Hollomans – Mark and I are 2nd cousins – 209 cM match), but haven’t checked all the names you listed. Doug Johnson (administered by his wife Tommi) is also a 2nd cousin (324 cM match), but not on your list. I am descended from James Johnson (my GGF) and Martha J Adkins through their son Charles Ira Johnson.
On FTDNA, I also have an AT match with Howard Marion Johnson (74 cM) and also a Y-37 (GD-2) match (I’ve tested at Y-111).
On FTDNA, I joined the Johnson surname group, the R_R1b ALL Subclades and the R-U106 projects. Some SNP testing shows I’m in hoplogrooup subclade R-L48, which is a subgroup of R-U106 and R-M269.
BTW, Any rumors you may have heard about our Johnson line being related to President Andrew Johnson have been debunked by my Y-DNA test. None of his proven descendants were even close (at Y-67).
According to my notes, I show your wife as a 4th cousin with John Johnson b1806 as the MRCA. However, if she’s descended the same James Johnson I am, then we’re 3rd cousins. Mine was born in 1842 to John Johnson – her’s is probably the James Johnson born in 1816 who is John Johnson’s brother. We should double-check to get our records straight.
Keep up the good work!
Everett Johnson
GEDmatch Kit No: A831848 (autosomal only)