Who was Louisa Johnson’s uncle? No one with the surname Johnson signed the Declaration of Independence. Her father was an American merchant living in London at the time she was born—he was appointed a consul later, after Britain recognized US independence. She grew up in England and in France and was married in London—I don’t know if she had been to the US before 1801. But I think having a citizen father would have made her a US citizen. Reportedly John Adams initially was opposed to John Quincy marrying a “foreigner.”
My mistake, Thomas Johnson was a delegate to the Continental Congress, but he went back to Maryland to serve in the state assembly before the Declaration was signed. He went on to be Governor of Maryland and a US Supreme Court Justice.
But I think having a citizen father would have made her a US citizen. Reportedly John Adams initially was opposed to John Quincy marrying a “foreigner.”
Her mother was English. I'm quite convinced LCA's son JQA qualified as a natural born citizen. But I just wanted to point out the difficulty after the Revolution of determining just which of the Americans living abroad qualified as US citizens and on what grounds (and also to show that I still remember things from the school paper I had to write on the Adamses many years ago).