DNAnigma, no. 20 — SOLVED!
When my maternal second cousins’ DNA results posted last year at Ancestry.com, I immediately noticed we shared a close cousin in common.
K.J. and G.W. are my second cousins. A.R. is a match we share.
Who was A.R.? Per Ancestry’s centimorgan (cM) totals (which run low), A.R. shared 99 cM with me, 98 cM with K.J., and 111 cm with G.W. That’s roughly the third cousin range. As K.J. and G.W. are the grandchildren of one of my maternal grandmother’s full sisters, I could be reasonably sure that A.R. was with us in the Colvert or McNeely line. (A.R. also matches E.J., great-grandson of my grandmother’s other full sister.)
In trying to contact A.R., I found his sister A.P. She was quite excited about our genetic link and expressed interest in DNA testing. I mailed her an Ancestry.com kit, and her results came in last week. As expected, A.P. matched K.J., G.M. and I in the same range as her brother does. What was our connection though?
A.P. told me that three of her four grandparents were from the Caribbean, so it was highly unlikely that I matched her in those lines. However, her fourth grandparent, her mother’s father J.W., was an enigmatic figure who had disappeared from the family. Was he the link?
J.W.’s name is a common one, and we had only a general idea of his birthplace. I examined my tree carefully, focusing on my maternal grandmother’s family. Given the information we had, nothing seemed to match up. A.P. probed her close relatives for more information and late last week learned that J.W. was born in 1933 and his mother was named Eva. A quick search turned up J.W. and his mother (and father and siblings) in the 1940 federal census of Statesville, Iredell County, North Carolina.
My heart leaped. Statesville??? That’s where my grandmother was born! Suddenly, connecting A.P. and her grandfather J.W. to my family seemed not just possible, but likely. I searched for more records of J.W.’s mother and found her marriage license. I scanned the document quickly, then stopped short. On 14 June 1930, when Gilmer Walker applied for a marriage license for himself and Eva Petty, 18, he had named her parents as Delia Petty and … Lon Colbert!
Colbert was a common misspelling of my grandmother’s maiden name, which in fact was COLVERT. I paused. The handwriting was ambiguous, was the first name LON or LOU? Lon W. Colvert, son of John W. Colvert and Harriet Nicholson, was my grandmother’s father. Lewis “Lou” Colvert was his uncle — brother (or half-brother or maybe even step-brother) of John W. Colvert. If Eva’s father were Lou (and Lou were a biological rather than step-brother to John Colvert), then A.P. and my most recent common ancestor (MRCA) would be my great-great-great-grandfather Walker Colvert, and she and I would be estimated half-fourth cousins. The average shared cM range for this relationship is in the single digits, and there’s a 50% that cousins at this distance show no DNA match at all. But A.P. and I share 96 cM, so Lewis Colvert is extremely unlikely to be our MRCA.
If, instead, Eva Petty Walker’s father were Lon, A.P. and I would be half-second cousins once removed. The cM range for that relationship would be the mid to high double digits. This range not only captures our cM, it also encompasses the cM totals that A.P. shares with my sister, K.J. and G.W., who would all have the same relationship distance with A.P. If Lon is our MRCA, A.P. and my mother and late uncle Charles would be half first cousins twice removed. As the chart below shows, their 182.4 and 173.8 cM shares with A.P. are on the high end of the 1C2R range.
Gedmatch matrix comparing autosomal cM shares among Colvert descendants — me, my mother, my sister, my maternal uncle, two second cousins, and A.P.
Thus, the evidence points to A.P.’s great-grandmother Eva Petty Walker as the daughter of my great-grandfather Lon W. Colvert. Eva was born 3 October 1911, ten months after Lon’s wife Carrie McNeely Colvert’s youngest daughter was born. Eva was his seventh known child, all but one of whom were girls.
[UPDATE: 5/1/2017 — I just got a match in Ancestry.com to T.C., who is the grandson of Eva Petty Walker’s daughter. Further confirmation.]
[UPDATE: 9/14/2017 — A.P. and my mother (and the other Colvert testees) also shared matches with S.X. S.X. and A.P., in fact, shared a cM total in the 1100 range, which is exceedingly high. I just confirmed that S.X. is another child of J.W., further cementing the conclusion that J.W.’s mother Eva was Lon W. Colvert’s daughter.]
[UPDATE: 4/13/2018 — A couple of days ago, I saw that T.R. is an estimated second cousin match to my mother, and an estimated first cousin match to S.X. It didn’t take too long to figure it out this time — T.R.’s paternal grandmother was another of Eva Petty Walker’s children.]