In our last post, Sheridan* responded to her potential fifth cousin Akina and discovered that she has a potential second cousin through 23andMe’s Relative Finder feature. All of this is exciting, but she’s definitely starting to feel her lack of genealogy experience catching up with her. When she logs into her account next, though, she finds a message from her friend Brian:
Hi Sheridan!Did you notice that 23andMe predicts us as 4th cousins?? How cool! We should chat about this sometime. Won’t our parents be amused!Cheers,
In fact, Sheridan had been so focused on Akina’s contact request and her exciting second cousin match that she’d totally missed the match a few rows down listing “Brian Killoran” as her potential fourth cousin! She and Brian had grown up together and their parents were still good friends. Sheridan thinks it’s wonderfully ironic given that she’d considered the Killorans as much family as her own. It’s also quite fortuitous because Brian recently developed an interest in genealogy and could show her a bit of what he’s learned. With his help, she might just find out who their shared ancestor was.
Sheridan calls Brian up and they agree to meet at the coffee shop down the street. Once there, they set up their laptops side by side and log in to their individual accounts. Brian asks if she’s checked out any of the Ancestry Labs, but aside from reading about the Haplogroup Tree Mutation Mapper (see Sheridan’s introduction to haplogroups), she hasn’t.“Oh, yeah,” he nods, “Haplogroup Tree Mutation Mapper is a personal favorite of mine. But right now, the buzz is all around Countries of Ancestry.” He clicks on Ancestry Tools > Countries of Ancestry in his account and shows Sheridan.
“Hmm.” Brian squints at her screen. “Well, my four grandparents were all born in Ireland, so maybe if we clean this up a little…” He moves the minimum number of grandparents back up to four. Almost all of the colored bars vanish. Of the ones that remain, Brian drags the mouse over to a strip of four pinkish-red colored bars on chromosome 10. “This is probably me,” he says.
The screen shows another view of the 23 pairs of chromosomes. Brian selects Sheridan’s name from a drop-down list of his shares and a bright blue strip representing a half-identical region of DNA appears on chromosome 20. “So I guess that means I’m actually those pink bars on chromosome 20!” he says.Sheridan is impressed at this level of detail, but still wondering if they can figure out their ancestral connection. For that, Brian says, they’ll need to go hunting the old-fashioned way. Although his own parents weren’t born in the United States, he knows that some of his ancestors immigrated here in the late 1800’s and he’s been collecting whatever historical records he can find. They decide to meet up again in a few days after he’s looked through his files.
In the meantime, Brian suggests that she contact her second cousin match. “Maybe it will give us a clue about our ancestral connection,” he says, “but even if it doesn’t, it’s still a clue about your family tree.”With this encouragement, Sheridan clicks “make contact” and sends a customized introduction to her predicted second cousin:
Hello,My name is Sheridan. 23andMe has identified us as potential 2nd cousins. I’m adopted, and hoping to learn more about my biological relatives! Would you be interested in communicating further to see how we might be related? Sheridan
She finishes her coffee and bids goodbye to Brian. She can’t wait to see what they can figure out at their next meeting.
Other posts in this series:What Can You Learn? – An overview of 23andMe’s ancestry features.Introducing Sheridan – We meet Sheridan and she learns about her maternal haplogroups.Sheridan’s Global Origins – Sheridan compares herself and her friends to various populations around the world.Sheridan’s Got Relatives – Sheridan responds to a fifth cousin and discovers a predicted second cousin in the 23andMe database.(next) Old Roots and New Horizons – Sheridan and Brian put together the pieces to sketch out their shared family tree.
* The people and events described in these posts are fictional.