This is a book both for the reader with a casual interest in ancestry, and the serious researcher of Scottish genealogies. It starts by tracing the ancestry of the Grahams of Grayville, Illinois, to Pennsylvania and Virginia. In the course of following their trails to Ireland and Scotland, the author amasses a library of church history, geography, archaeological data, land records, DNA, military and other historical records that stretches as far back as the first recorded Graham in Scotland, William de Graham. This collection of reference data is preserved in the appendices to assist researchers of Scots-Irish ancestry, not just Grahams. Our Grahams of Pennsylvania and Virginia also includes information on related clans such as the Kirkpatricks, Corries, Murrays, and Armstrongs and provides a new perspective on Scottish history and the origin of the Scottish people using the latest Y-DNA and archaeological data available. It breaks new ground and punctures some long-held misconceptions of family genealogies. It also postulates theories that would explain the facts and circumstances behind several major events, as well as family connections, and legends of Scottish history. Additional DNA testing may eventually prove which theories are correct.