Genealogy > Thom(p)son DNA Project
New member hello to the Clan
Kenton Thompson:
Thanks everyone for the offers of assistance, I hope to add some info to my current family tree. The Thompson line of my tree only goes back 5 generations prior to me. My father and Grandfather were both born in Springfield, MO, my GG-father, Otis Leroy Thompson was born in Moberly, MO in 1882. His father, William Anderson Thompson, was born in Tenn. in 1857. His father, James P. Thompson was married in Ray Co., MD (to Amanda Alvina Parker) in 1852, but I don't know where he was born. That's were it ends on the Thompson side. My hard drive crashed with my Roots software on it, so I'm going to have to recover, or re-enter, the info to have an electronic version to share.
Karma, both of my parents went to SMSU and my Grandmother, Ruth Stanley Thompson was an art professor at SMSU. One of my Great Uncles, last name Kemper, has a building at SMSU named after him.
All the best,
Kenton Thompson
Thomas Thompson:
Hello Kenton
Glad to see your posts. I am interested in your thoughts on DNA testing. It is my experience that testing for 12 markers only show very limited relationships. The same can be said for 25 markers. When you find a 35 or 36 out of 37 marker match you can expect to have a DNA connection within 3 or 4 generations of the oldest male in the line. A generation is 30 years. A 37/37 match means you share an extremely close common ancestor. 50% of the time within 5 generations or less.
Specifically, if you match someone with the same surname, you have a 99.9% likelihood of sharing a common ancestor with that person in a genealogical time frame. Most Recent Common Ancestor (MRCA) for the T time lived. SO - 67/67 match has a 50% probability that the MRCA lived no longer ago than 2 generations, A 90% probability that the MRCA lived no longer ago than 4 generations. The generations are doubled if the match is 66/67.
I have a 36/37 match with Thomas Thompson, b 1753, Pelham MA. It is possible that Thomas was one of my ancestors or a brother/cousin of my migrating ancestor. Over 250 years the allele could have mutated by one or two markers. Example; In a 24/25 related match usually the most probable mutated allele will be a DYS : 439,385a,385b,389-1,389-2, and 458,459a, 459b, 464a-d, If so then the probability of a close relationship is very high.
I hope I have not confused you.
TOM
Kenton Thompson:
Tom,
Thanks for the insight. I've looked over the testing options and while it's obvious that the 67 maker test is more comprehensive, it's difficult to tell how much more it really tells you and whether the additional information is worth paying about twice as much for the information. Since the results are seldom conclusive as to an exact match, the information seems to be more of general interest regarding family origins and migration patterns over time. Maybe I'm selling this short, but I don't expect to be able to pencil in any names on my family tree as a result of taking a DNA test.
If I'm mistaken, I would be interested in knowing. Maybe some of the other folks in the forum have success stories to share that would be helpful.
Thanks,
Kenton
Mary:
This sounds like your family................
Found this entry on Ancestry.................... maybe it will give you some help? I found a couple of records - all say the marriage was in Ray, MISSOURI - not Maryland. Have some additional info if this is yours........
James P. Thompson
* Birth: Apr 1829 - Tennessee
* Marriage: 14 Apr 1852 - Ray, Missouri, USA
* Death: 4 Jan 1904 - Washita, Oklahoma, USA
* Parents: John Thompson, Mary McGee
* Spouse: Amanda Alvina Parker
Mary
Navigation
[0] Message Index
[*] Previous page
Go to full version