Does anyone know if it's possible to share a lot of DNA with a distant cousin?
First I'll explain the situation. I have a connection to the "White" Bolling family on my dad's side through my grandma and a possible "Red" Bolling connection AKA Pocahontas' descendants through his grandmother. I'm a 10th great-granddaughter of a woman named Mary Bolling who married a Chambliss. She was from England, therefore making her a "White" Bolling. But I'm also a descendant of a woman named Penelope, married to Captain Christopher Clark. No one knows her parentage although there are rumors she may have been a daughter of John Fairfax Bolling and Mary Kenyon, apart of the "Red" Bollings. I've never known for sure nor have I ever claimed that heritage because I didn't want to claim something that wasn't true.
Either way though, I found a person who I match up with on GEDmatch who happens to be a descendant of John Kennon Bolling, son of John Fairfax Bolling.
It tells me we're about 4th or 5th cousins but according to his Wikitree, I can't find anything that connects us. Granted I know that sometimes there's misinformation, illegitimate children, affairs, or some people just don't know all of their ancestors for lack of information or damaged records. Now if we were related through the Bolling connection and not a different one, according to my own calculations, we'd be 6th cousins, 5x removed. That doesn't sound to me like we'd have as much DNA as we do at that level. So saying it's through the Bollings may be wrong but I'm just not sure on it.
This is our connection on my chromosome as well as his sister who is also my cousin:
6 129,035,893 151,517,840 27.5 2,506 - My Cousin
6 128,881,163 151,519,107 27.7 4,030 - His Sister
Can anyone please help me figure this out?