<P> Montgomery (2006) analyzes the pronunciation, vocabulary, and grammatical distinctions of today's residents of the mountain South and traces patterns back to their Scotch - Irish ancestors . However, Crozier (1984) suggests that only a few lexical characteristics survived Scotch - Irish assimilation into American culture . </P> <Table> <Tr> <Th> Year </Th> <Th> Total Population in U.S. </Th> </Tr> <Tr> <Th> 1625 </Th> <Td> 1,980 </Td> </Tr> <Tr> <Th> 1641 </Th> <Td> 50,000 </Td> </Tr> <Tr> <Th> 1688 </Th> <Td> 200,000 </Td> </Tr> <Tr> <Th> 1700 </Th> <Td> 250,900 </Td> </Tr> <Tr> <Th> 1702 </Th> <Td> 270,000 </Td> </Tr> <Tr> <Th> 1715 </Th> <Td> 434,600 </Td> </Tr> <Tr> <Th> 1749 </Th> <Td> 1,046,000 </Td> </Tr> <Tr> <Th> 1754 </Th> <Td> 1,485,634 </Td> </Tr> <Tr> <Th> 1765 </Th> <Td> 2,240,000 </Td> </Tr> <Tr> <Th> 1775 </Th> <Td> 2,418,000 </Td> </Tr> <Tr> <Th> 1780 </Th> <Td> 2,780,400 </Td> </Tr> <Tr> <Th> 1790 </Th> <Td> 3,929,326 </Td> </Tr> <Tr> <Th> 1800 </Th> <Td> 5,308,483 </Td> </Tr> </Table> <Tr> <Th> Year </Th> <Th> Total Population in U.S. </Th> </Tr> <Tr> <Th> 1625 </Th> <Td> 1,980 </Td> </Tr>

When did the scotch irish come to america