In my family my understanding (disclaimer: this is not based on DNA evidence, it's just what my family has said) is that both my grandparents on my father's side are English, although they claim to have some Native American genes in the family. I don't go around claiming to be Native American, but that's the story they tell.
On my mother's side my grandmother is English but my grandfather (who died the year I was born) always claimed to be Irish. He was an immigrant to the U.S., hard drinking, short and liked to gamble. When I was still in elementary school my grandmother on that side came to SLC to visit my mom, my grandma lived in Joplin, MO, which is where my mom grew up. They headed over to the family history place and did some research. They couldn't come to any definitive conclusions, but what my mom said after that was that the best they could tell my grandfather was a jewish immigrant from Russia. She figured claiming to be Irish just played better where he ended up than claiming to be a Russian Jew. But had you asked her before that she would have said she was half Irish. Would you laugh and mock her, make leprechaun jokes about her and call her a liar if you found out that she was wrong?
On my mother's side my grandmother is English but my grandfather (who died the year I was born) always claimed to be Irish. He was an immigrant to the U.S., hard drinking, short and liked to gamble. When I was still in elementary school my grandmother on that side came to SLC to visit my mom, my grandma lived in Joplin, MO, which is where my mom grew up. They headed over to the family history place and did some research. They couldn't come to any definitive conclusions, but what my mom said after that was that the best they could tell my grandfather was a jewish immigrant from Russia. She figured claiming to be Irish just played better where he ended up than claiming to be a Russian Jew. But had you asked her before that she would have said she was half Irish. Would you laugh and mock her, make leprechaun jokes about her and call her a liar if you found out that she was wrong?