Category Archives: genealogy

genealogy

i got my DNA analysed a few years ago.

a couple months ago, i got rosemary’s DNA (my paternal great aunt) analysed. she has the same father as my great grandfather, but her mother is different than my great grandmother.

i figured that we would have some DNA in common, that we could both use to help determine who is part of our family.

apparently, we have ZERO DNA in common:

no DNA in common?
no DNA in common?

what the fuck?

ETA: it’s because the DNA analysis was done on our mitochondrial DNA, which, while easier to analyse, is passed through our mothers’ side. she had a different mother than my great grandmother, so there’s no overlap.

mystery solved.

so, here’s a question

i wonder to whom i am related. i’ve done a fair amount of genealogical research, and i have a database with a few thousand people to whom i am related in some way or another… and there’s this piece of information, which i figured out when i was just starting out, about 15 years ago:

1             – self
2             – parents – 1 generation ≅ 25 years
4             – grandparents – 2 generations ≅ 50 years
8             – great grandparents           – 3 generations ≅ 75 years
16          – 2x great grandparents    – 4 generations ≅ 100 years
32          – 3x great grandparents    – 5 generations ≅ 125 years
64          – 4x great grandparents    – 6 generations ≅ 150 years
128       – 5x great grandparents    – 7 generations ≅ 175 years
256       – 6x great grandparents    – 8 generations ≅ 200 years
512       – 7x great grandparents    – 9 generations ≅ 225 years
1024    – 8x great grandparents    – 10 generations ≅ 250 years
2048    – 9x great grandparents    – 11 generations ≅ 275 years
4096    – 10x great grandparents – 12 generations ≅ 300 years
8192    – 11x great grandparents – 13 generations ≅ 325 years
16384 – 12x great grandparents – 14 generations ≅ 350 years
32768 – 13x great grandparents – 15 generations ≅ 375 years
65536 – 14x great grandparents – 16 generations ≅ 400 years

according to the research i have done, i’ve traced one thread of my family fabric back to the 1620s, but i’ve only tracked 11 generations, which indicates to me that there was a shorter time between generations, the further back you go, but it’s an accurate number of relatives, even if the number of years isn’t exactly accurate…

but, i think about 65,536 people who had an active part in my creation, despite the fact that they never knew who i am, and probably never knew anybody other than the people two or three generations to either side of them… and i also think about the approximately 7,000,000,000 individuals that currently inhabit the planet, all of whom have the same 65,536 relatives, some of whom are the same people… and 65,536 only goes into 7,000,000,000 approximately 106,812 times…

so the probability is pretty high that you, and i, and everyone else, are related to pretty much everybody, if you go back far enough…

genealogy

President Benjamin Harrison and his wife had a son, Benjamin Harrison II.

Benjamin II and his wife had a son, Benjamin Harrison III.

Benjamin III and his wife had a son, Benjamin Harrison IV.

Benjamin IV and his wife had a son, Benjamin Harrison V.

Benjamin V and his wife had a son, President William Henry Harrison. Benjamin V also had another son, William Henry’s brother, Carter Bassett Harrison.

Carter Bassett Harrison and his wife, Jane Byrd, had a daughter, Caroline Harrison.

Caroline Harrison married William Henry Lawrence, and they had a son, Henry Harrison Lawrence.

Henry Harrison Lawrence married Mary Elen (Molly) Ross, who was the daughter of Samuel Lafayette Ross and Cassandra Kinkaid Slaughter

Samual Lafayette Ross was the son of James Thomas Ross and Sarah (Sally) Cook. James Thomas Ross had another son, Samuel Lafayette’s brother, Alfred Cowan Ross.

Alfred Cowan Ross married Nancy Margaret (Madge) Johnson and had a daughter, Una Perry Ross.

Una Perry Ross married Matthew Shields DeWoody, and they had a daughter, Herma Vera DeWoody.

Herma Vera DeWoody married Albert Augustine Hammond and had a son, who is my father.

so, President Benjamin Harrison is my first-cousin-in-law, 10 times removed…

or something like that…