Han Chinese in Early America. They have been in America for a very very long time. They just went underground, literally, when laws banned them. They come out when it is safe. Every major city in America had/has a Chinatown.
https://www.dailymail.co.uk/sciencetech/article-3152556/Did-China-discover-AMERICA-Ancient-Chinese-script-carved-rocks-prove-Asians-lived-New-World-3-300-years-ago.html
https://www.goodshomedesign.com/ancient-infants-dna-reveals-new-surprises-about-how-north-america-was-populated/