Smith-62120 - Notes on DNA Matches

Profile manager: Ellen Smith [send private message]

Notes on DNA Confirmation

Comments on DNA matches and relationship distance are based on The Shared cM Project's DNA Painter calculator and table at https://dnapainter.com/tools/sharedcmv4

Relationships to Mother

DNA confirmation of Ellen's relationship to her mother, Catherine Van Aken, is based on:

• Full sibling autosomal DNA match with sister Nancy Smith. Both tested on 23andMe.
• Autosomal matches and mitochondrial haplogroup matches between Ellen and Nancy and their first cousin TG, son of a sister of Catherine, also tested on 23andMe. Ellen and TG match on 40 segments over 953 cM. Nancy and TG match on 40 segments over 1143 cM. Both of these matches are consistent with a first cousin -- and too strong for a half-first cousin or a first cousin once removed. All three tested individuals report mtDNA haplogroup H1e. These matches also confirm the relationships to maternal grandparents Helen (Wingard) Van Aken and Homer L. Van Aken.
• Autosomal matches between Ellen and Nancy and their first cousin once removed (a grandchild of a sister of Catherine), also tested on 23andMe. Ellen and the cousin match on 23 segments over 589 cM (including X chromosome). Match between Nancy and this cousin is on 23 segments over 724 cM (including X chromosome). Both of these matches are in the predicted range for either a first cousin or a first cousin once removed.
• Autosomal DNA match of Ellen Smith to GD, a third cousin once removed; both trace ancestry to Philip Sultzbach and Mary Tice. GD and Ellen Smith match on 75 cM over seven segments, the longest being 16.0 cM. This is essentially the expected match for a third cousin or a second cousin twice removed and is within the statistical range for relationships ranging from first cousin twice removed to fifth cousin. Nancy has a match with GD of 38 cM on 4 segments, close to the predicted match for a third cousin twice removed and consistent with the statistical range for relationships ranging from second cousin once removed to fifth cousin three times removed. Their first cousin TG, who also maps as GD's third cousin once removed, matches them on a single segment at 17 cM (well within the statistical range for the mapped relationship). There is a three-way match between GD, TG, and Ellen Smith, but apparently less than the 7-cM threshold for a triangulated autosomal match.
• Good DNA matches on 23andMe to multiple third cousins who trace ancestry to sisters of Jessie (Schermerhorn) Van Aken. These confirm descent from Catherine Van Aken, Homer Van Aken, his mother Jessie Schermerhorn, and (I think) her parents Walter Schermerhorn and Catharine Kimmey.

Relationship to Father

DNA confirmation of Ellen's relationship to her father, David Smith, is based on:

• Full sibling autosomal DNA match with sister Nancy Smith. Both tested on 23andMe.
• Multiple two-way autosomal DNA matches between (Ellen Smith and Nancy Smith and two second cousins who are grandchildren of Louise Clark Anderson, all tested on 23andMe. These matches are all consistent with a second-cousin relationship.

Other Notes

Partridge

Longest match with Maggie McJ, per Gedmatch:

Chromosome 3:

B37 Start Pos'n: 60,573,769

B37 End Pos'n:65,965,134

Centimorgans (cM): 9.6

SNPs: 1,315