DNA statistics part 2- Maternal side

Mom's DNA results are challenging. About 80 % of my ancestry results are paternal. Mom's grandmother was a first generation American and we don't have a lot of matches from those lines, same for her Choctaw side. That said she has clusters of matches for some groups.

Note: I share 50 percent of my DNA with my parents and my daughter. On Gedmatch that number varies in cM from 3549 for Mom, 3552 for Dad and 3581 for my daughter using my 23andme test. Dad and mom are both on 23andme and my daughter is on Ancestry. For an average I am using 3560 cM as marker for 50%.  Differences are likely due to unreadable (no call) areas from the samples.

Based on the unrealistic 50 % DNA from each parent in each generation, this is what the contributed DNA “should” be for my parents, me and my daughter if every generation was inherited equally at 25 % for each grandparent’s DNA contribution.

Relationship to my Mom/Dad	Percentage	Dad/Mom’s estimated cM	My estimated cM	My daughters estimated cM
Grandparent	25 %	1780 cM	890 cM	445 cM
Great Grandparent	12.5%	890 cM	445 cM	222.5 cM
G.G. grandparent	6.25%	445 cM	222.5 cM	111.3 cM
G.G.G. grandparent	3.125%	222.5 cM	111.3 cM	55.6 cM
GGGG grandparent	1.563 %	111.3 cM	55.6 cM	27.81 cM
GGGGG grandparent	0.781 %	55.6 cM	27.81 cM	13.9 cM

My parents are only on 23andme and Gedmatch, where I am on Ancestry, 23andme and Gedmatch and my daughter is on Ancestry and Gedmatch only. (I am not using FTDNA or my heritage matches for this table.)  Since most “in common” identified matches will go back to a common ancestor pair (or double the DNA from the above table as “possible”) I wanted to look at the highest match to a known DNA pair for my parents, myself and my daughter. 

Results for my mother’s family are below.

Surname Pair	Relationship to Mom	Mom’s estimated Cm	Mom’s highest match	My estimated Cm	My highest match	My daughters estimated Cm	My daughters highest match
Hager/Adams	Grandparents	3560	NA	1780	NA	890	NA
Hinds/Timmins	Grandparents	3560	2006.1 Aunt	1780	1229	890	609
Hager/Collins	G Grandparents	1780	590.6 ½ 1c	890	218	445	35.1
Adams/Trahern	G grandparents	1780	580.4 1C1R	890	232.5	445	91.8
Hinds/Paxton	G grandparents	1780	43.8	890	100	445	NA
Timmins/ Brampton	G grandparents	1780	300	890	175	445	NA
Hager/Barnett	GG grandparents	890	146	445	42	222.5	25.2
Collins/ Mangum	GG Grandparents	890	37.2	445	15	222.5	NA
Hinds/Crawford	GG grandparents	890	NA	445	28.4	222.5	11.2
Paxton/Douglas	GG grandparents	890	NA	445	NA	222.5	NA
Adams/Rogers	GG grandparents	890	NA	445	NA	222.5	NA
Trahern/ Gardner	GG grandparents	890	NA	445	NA	222.5	NA
Timmins/Phillips	GG grandparents	890	NA	445	NA	222.5	NA
Brampton/ Spicer	GG grandparents	890	NA	445	NA	222.5	NA
Hager/Whitley	GGG grandparents	445	NA	222.5	23.9	111.3	NA
Barnett/ Bagwell	GGG grandparents	445	97.3	222.5	NA	111.3	NA
Adams/ Unknown	GGG grandparents	445	NA	222.5	NA	111.3	NA
Rogers/ Rodgers	GGG grandparents	445	174	222.5	48	111.3	24.5
Trahern/ Hall	GGG grandparents	445	NA	222.5	N	111.3	NA
Gardner/ Unknown	GGG grandparents	445	NA	222.5	NA	111.3	NA
Collins/Adams	GGG grandparents	445	45.1	222.5	18.3	111.3	19.4
Mangum/ Unknown	GGG grandparents	445	NA	222.5	NA	111.3	NA
Hinds/ Bent	GGG grandparents	445	NA	222.5	28.3	111.3	NA
Crawford/ Wheeler	GGG grandparents	445	NA	222.5	NA	111.3	NA
Paxton/ Brown	GGG grandparents	445	NA	222.5	NA	111.3	NA
Douglas/ Unknown	GGG grandparents	445	NA	222.5	NA	111.3	NA
Timmins/ Hale	GGG grandparents	445	NA	222.5	NA	111.3	NA
Phillips/ Castle	GGG grandparents	445	NA	222.5	NA	111.3	NA
Brampton/ Unknown	GGG grandparents	445	NA	222.5	NA	111.3	NA
Spicer/ Haywood	GGG grandparents	445	NA	222.5	NA	111.3	NA