This is part 1 of 2 of a family history of John McLaughlin (I) and his descendants starting in 1720. It covers 300 years of the McLaughlin Family in America. John was Scot-Irish from Northern Ireland. He arrived in Londonderry, New Hampshire about 1740. The book includes a brief history of Northern Ireland, the early days of the Scots-Irish in New England, and the march west to Illinois and other parts of the Northwest Territory. Part I also includes Pedigree Charts, Maps, and Photographs. 286 pages.