The most recent of my ancestors to have immigrated to the US (I'm American) was Alexander Kerr (b 1694, Roxburghshire, Scotland) although there is some question

The most recent of my ancestors to have immigrated to the US (I'm American) was Alexander Kerr (b 1694, Roxburghshire, Scotland) although there is some question as to whether or not he was the father of my 6th great-grandfather, John Kerr (b 1728, Williamsburg, VA). He was a Jacobite, convicted of treason in 1715 and given a choice of either hanging or America, so it's not like an abundance of entrepreneurial spirit drove him to emigrate. Of course, there may be more recent immigrants in my family tree. I don't know where all of the branches go.