The Robert Runyon Photograph Collection of the South Texas Border Area, a collection of over 8,000 items, is a unique visual resource documenting the Lower Rio Grande Valley during the early 1900s. Donated by the Runyon family to the Center for American History in 1986, it includes glass negatives, lantern slides, nitrate negatives, prints, and postcards, representing the life's work of commercial photographer Robert Runyon (1881-1968), a longtime resident of South Texas. His photographs document the history and development of South Texas and the border, including the Mexican Revolution, the U.S. military presence at Fort Brown and along the border prior to and during World War I, and the growth and development of the Rio Grande Valley. The collection can be searched by keyword or browsed by subject.