William Henry Jackson, Photograph of Yellowstone Lake, Bird's Eye View from the South East Arm, Yellowstone Series, 1871. (Detail, GLC 03095.41) he Gilder Lehrman Institute and the National Park Service signed a cooperative agreement in summer 2002 to provide seminars for National Park Service educators. Two NPS educators also participate in each of the Gilder Lehrman Summer Seminars for Teachers. Past Seminars: 2003 Slavery and Antislavery March 17-19, 2003, Harpers Ferry, WV Led by David W. Blight and James O. Horton David W. Blight, Class of 1959 Professor of Black Studies at Amherst College, is the author of Race and Reunion: The Civil War in American Memory, which won the Frederick Douglass Book Prize in 2001. James O. Horton is the Benjamin Banneker Professor of American Studies at George Washington University and directs the African-American Communities Project at the Smithsonian Institution. He is the co-author of In Hope of Liberty: Culture, Community and Protest Among Northern Free Blacks, 1700-1860. William Henry Jackson, Photograph of Yellowstone Lake, Southeast Arm, Yellowstone Series, 1871. (Detail, GLC 03095.44) Ranger at Val-Kill Cottage addresses Gilder Lehrman seminar participants Past Seminars: 2002 History of Science in the American West May 27-29, 2002, Estes Park, CO Led by Patricia Nelson Limerick and Richard West Sellars Patricia Nelson Limerick is a professor of history and chair of the Center of the American West at the University of Colorado at Boulder. She is the author of Legacy of Conquest and Something in the Soil: Legacies and Reckonings in the New West. Richard West Sellars is a National Park Service historian and the author of Preserving Nature in the National Parks: A History. Slavery and Antislavery June 3-5, 2002, Harpers Ferry, WV Led by David W. Blight and James O. Horton David W. Blight, Class of 1959 Professor of Black Studies at Amherst College, is the author of Race and Reunion: The Civil War in American Memory, which won the Frederick Douglass Book Prize in 2001. James O. Horton is the Benjamin Banneker Professor of American Studies at George Washington University and directs the African-American Communities Project at the Smithsonian Institution. He is the co-author of In Hope of Liberty: Culture, Community and Protest Among Northern Free Blacks, 1700-1860.