Family Tree

Brief explainer on a first versus second cousin

Brief explainer on a first versus second cousin

What’s the difference between a first cousin, a first cousin, once removed and a second cousin? I get this question a lot! I usually end up explaining it at least once during Thanksgiving dinner each year.

Cousins who share a set of grandparents because their parents are full siblings are first cousins.

Cousins who share one grandparent because their parents are half siblings are half-first-cousins.

Cousins who share a set of great-grandparents because their parents are first cousins and their grandparents are siblings are second cousins.

“Removed” comes in when the two people in questions are from different generations.

What DNA Testing Can't Tell You: a guest post on Family Tree's website

I recently wrote a post for Family Tree Magazine’s website called “What DNA Testing Can’t Tell You” in which I focus on things the test itself can’t tell you, like how you’ll react to your results or how to reach out to a surprise relative if you find one.