Wow, AT. No need to be so harsh - I mean, don’t you think it’s possible that at least *some * of our great-great-multi-great grandmothers fooled around a little? Played hide-the-salami with some strapping young sheigetz?
I don’t think anyone could be 100% Polish without their parents and their grandparents being 100% Polish. 
I am English, with a surname that can be traced back to one Scottish island. So I guess that’s where I am from originally but goodness knows who the original Scot married!
I married a Japanese man whose mother probably had an Ainu mother. It causes huge family rows when brought up so we don’t, but I think the rows prove it! (Older Japanese people sadly still think Ainu blood is a shameful secret.) I’m sad that we can’t discuss it rationally and I’d be thrilled if it did prove to be true. I really think it is true - she has very non-typical Japanese features including light gold eyes. She also has a number of very weird animistic beliefs that she told me she got from her mother, that I have NEVER heard a Japanese person say. There was an ainu village across the road from where their farm was, etc etc.
If that were the case then my kids would be 50% British mutt, 12.5% Ainu and 37.5% Japanese.
English
Irish
Danish
Dutch
German
Czechoslovokian
My last name is German. My hair is mostly blonde, except my beard is bright red - for which I think I can thank my Irish ancestors.
Eastern European Jewish.
ETA: Now I’ve read the thread… yikes AT, that’s rough…
Faroese/Norwegian with a hint of german on both sides and posibly a french or spanish pirate and a Sami witch-woman somewhere in the mix.
Gross approximation follows:
1/2 Dutch
1/4 German
1/8 English
1/8 mix of slavic, irish, scottish, welsh, polish, italian, french
As far as I know I’m totally English, with no interesting ancestry. My father came from Kent/SE London and my mother from Surrey/SW London. I still live within 50 miles of where both of them, and their parents, grew up.
I’m a mongrel. Roughly speaking,
1/4 Russian (or Ukrainian) Jew…it was Russia when they fled, it’s Ukrainia now
1/4 Welsh
1/8 English
1/8 French
1/8 German
1/16 Irish
1/16 Scottish
My surname is the one assigned to the Jewish refugee part of my ancestry when they arrived at U.S. immigration in the late 1880’s. The family story is that nobody could spell their surname, so one was assigned. Allegedly, the patriarch’s reaction once he understood what was happening was, “Fine. That means we got in.” Of course, he’d have said this in Russian or Yiddish or something, as none of them spoke a word of English. It was only a couple weeks ago that my older sister, going through reams of old family papers, found out what the family name used to be - nobody from my grandfather on down had known.
Used to think that only my mom’s side had the big chunk of Irish and Scots blood in it, until I was finally able to track down my dad’s side, and found out that save for one Brit marrying into the family back in the 1800’s, his line is almost completely Celtic. If I got any whiter, I’d be invisible!
Mother’s side–French-Canadian with a touch of aboriginal somewhere down the line.
Father’s side–Celtic and who knows what else, with a touch of aboriginal somewhere down the line.
Mother’s side, apparently 100% Swiss.
Father’s side, half Czech, half Austrian, I think.
100% Australian
My parent came here from Australia after they were married; I’m the only one of the family that was born in the US (my sisters were born in Canada). Now, if you do a little further analysis, you’ll find the blood of my English, Irish, and Scottish ancestors that made their way (or were forced) to the Australian frontier.
100% Scottish.
50% Eastern European Jewish, with all the mish-mash that implies.
50% Black Forest German.
Typical American Mutt
1 pinch Cherokee, at least one quarter German, some French, some English, and probably a little Swiss.
Six Nations? I’m not familiar with the term.
Skol!
Mine too. We have no idea what her father was, but I’m thinking English.
On my father’s side is a mix of Scot, Irish, English, German, and Dutch.
'Nother American mutt:
1/2 German - my mother’s all German
1/4 French(ish) - that is, Grandpa’s family was French fur trappers come to the USA before it was the USA, via Canada, so we may well have picked up some Canadian DNA along the way. This side is probably, but not definitively, also got some NA blood from somewhere, but no one’s talking. There’s a suspiciously blank spot on one page of the genealogy report my aunt made up. Grandpa looked like the guy who played the chief in Dances With Wolves, only blond. But that’s the extent of my “evidence” to the claim.
1/4 mish mash of the British Isles - got some Welsh, some Irish, some Scottish, some English. We were not a discriminating lot, apparently
My ancestors on both sides have been here in America since ~1700, and as far as I know are the epitome of WASPness. My GGGGGGGG-GF and his wife were French Huguenots, and my last name is French, so that might be something somewhat other than Anglo-Saxon, but definitely militantly Protestant). Their progeny all married people with English/Scots-Irish/Welsh last names. I don’t discount the possibility of some Native American ancestry way back there somewhere, but it sure doesn’t represent itself in me (I’m a fair redhead).