One of the greatest internal migrations in American history has been the movement of the people of Appalachia to a variety of rural and urban destinations all over the country --- wherever economic opportunity beckoned. This movement has taken place in several waves throughout the twentieth century, and continues to this day. Appalachian Odyssey provides an interdisciplinary exploration of the impact of this phenomenon on both the Appalachian region and the country as a whole.
Family history and genealogical information about the descendants of John O'Gallaher (or Gallaher) and Margaret (surname unknown). They lived in County Donegal, Ireland. Three of their five children immigrated to America ca. 1758 and settled in Pennsylvania. Emphasis in given to their son James who immigrated to America and first lived in Mifflin Station, Pennsylvania. James later settled in the state of Tennessee. Descendants of John and Margaret Gallaher lived primarily in Pennsylvania, Tennessee, Texas, Missouri and Oklahoma.