FREDERICK: 11 a.m.-3 p.m. July 17. At the National Museum of Civil War Medicine, a reenactment of the court-martial of a Union Army surgeon, presented by Lawrence Wesker. Fee charged. 301-695-1864.

WASHINGTON: 10 a.m.-1 p.m. July 19. At the National Archives, "Beginning Military Genealogical Research," a workshop on wars, including the Civil War. Reservations required. Fee charged. 202-501-5000, menu option 5.

HAGERSTOWN: July 21-25. Based at the Plaza Hotel, the seminar "David and Goliath: The Shenandoah Valley Campaign of 1864," with bus tours and lectures by retired National Park Service chief historian Ed Bearss and others. Fee charged. 717-264-7101.

WASHINGTON: noon and 7 p.m. July 22. At the National Archives, lecture and book signing by Elizabeth Leonard, author of "Lincoln's Avengers," about the postwar reconstruction era. Reservations recommended. Free. 202-501-5000, menu option 5.

HAGERSTOWN: 7-11 p.m. July 23. At the Plaza Hotel, the Luhn-Adams Memorial Preservation Auction, sponsored by Chambersburg Civil War Seminars. Features Civil War memorabilia, including books, prints and weapons. Free. 717-264-7101.

FREDERICK: 10 a.m.-1 p.m. July 24. At the National Museum of Civil War Medicine, book signing by Terry Reimer, author of "Divided by Conflict, United by Compassion: The National Museum of Civil War Medicine." Free. 301-695-1864.

BLACKSBURG: July 30-Aug 1. At the Civil War Center of Virginia Tech, the annual Civil War Teacher Institute with lectures, historical reenactments and a field trip to Appomattox Court House. Free. 888-606-1400.

WINCHESTER: 9 a.m.-5 p.m. Aug. 1. Leaving from Winchester, a field tour sponsored by the Civil War Education Association on the "Birth of a Legend -- Stonewall Jackson in 1861: From Winchester to Manassas and Back." Fee charged. 800-298-1861.