This is a book about the ancestors and descendants of Isaiah Van Horn a Pioneer of Indiana County and Drummer Boy in his father's Bucks County, Pennsylvania Malitia. The book delineates all of the descendants that the author could locate and includes information about the family that he could gather from various sources and individuals. The Van Horn family began in the United States of America with the migration of Barent Christianson Van Horn to New Amsterdam with the early Dutch Settlers. Barent was the first Fire Marshal of New Amsterdam. He was a burger and owned an acre at the Land Gate of the Walled Street. That location is Broadway at Wall Street in New York today. The book includes some information about how later families were duped into believing that they still owned this property and that all would receive a portion of the riches from the settlement of this claim to this valuable location. The earliest ancestor in this work is Dick Clausen, born in 1616. There are over 6200 individuals included in the book covering 15 generations of Van Horn descendants. Over 1300 surnames are linked with the Van Horns in this book with over 1900 marriages delineated. It is interesting to note that the average life span from 1600 to date is 60 years and 7 months. Some indication of the longevity of the Van Horn stock. Other surnames of note are Work, Stewart, Steele, Shaffer, Mock, McElhoes, McCausland, McAFoos, Lydick, Lambing, Hutzler, Hutchison, Hummel, Gearhart, Dilts, Coon, Condron, Burket, Aul and Ashcom as well as over 1300 other surnames.