Historic Rock Ford welcomes author Greg Huber as he presents The History of Sweitzer Barns in Lancaster County on Saturday, Nov. 23, at 1 p.m. The two-level bank barn, also known as the Sweitzer, was likely the first barn of its specific type in North America that appeared initially in the middle third of the 18th century. Hear about the various factors that helped to influence the making and use of this magnificent type of barn.This presentation will take place in the Langmuir Education Room located on the first floor of the Rock Ford Barn, which is an example of this style of barn architecture. After the presentation, Huber will have copies of his book, The Historic Barns of Southeastern Pennsylvania, available for purchase and signing. General admission is $10, and tickets may be purchased at www.rockford.yapsody.com. Greg Huber is a barn and house historian, an independent scholar, consultant and principal owner of Past Perspectives and Eastern Barn Consultants, both historic and cultural resource companies based in Macungie, Lehigh County, Pa. Since 1974, Huber has specialized in pre-Civil War era house and barn architecture of Holland Dutch and Pennsylvania Swiss-German areas. He has documented more than 8,000 vernacular buildings that include more than 5,000 homestead barns. He is author of more than 340 articles on barn and house architecture. Historic Rock Ford, located at 881 Rockford Road, Lancaster, Pa., is comprised of the ca. 1794 General Edward Hand Mansion and the John J. Snyder Jr. Gallery of Early Lancaster County Decorative Arts. It is operated by the Rock Ford Foundation, a 501(c)(3) organization.