If there is a place designated “other” we check it. For once I agree with Bill Clinton. We are all mutts. I do genealogy and I’ve found three indigenous ancestors. My kids keep hoping I’ll find some African. Mostly though our ancestors came from Europe in the 17th century. Some of them were indentured servants and some were slave owners. I have one ancestor who fought for the Union in the Civil War. It’s all complicated but then we have idiots who say that the blacks built this country and the rest of us, including I would guess you and your family, are guilty of white privilege. Sigh.
See my above post (where I do find African blood in my lily white self) and do the 23 and me kind of tests! You can do you, or one of the kids, which will show your spouse’s influence too.