Van Buren has so far been the only President who wasn't part British

[basquebromance]

He was Dutch. But that's a reflection of our British and Dutch history, which were the two main groups that built early America. (New York was originally known as New Amsterdam.)

 

[Pogo]

Uh --- don't think so.

Rump is Scottish/German...
Kennedy: Irish on both sides
Eisenhower - German
the Roosevelts -- Dutch

van Buren however was the only POTUS whose native language was not English. Is that what you mean?

As far as "the two main groups that built early America" I think you're leaving out the French, Germans and Spanish. Not to mention the slaves.

 

[whitehall]

The Father of our Country and the first American President George Washington was a British Subject. So what's the point?