GENEALOGY FOCUS GROUP, learn about resources and share tips for researching ancestors. 7 p.m., Emmitsburg Branch Library, 300A S. Seton Ave., Emmitsburg. Free. 240-629-6329.
HEALTH INFORMATION ONLINE, Chris Miller, public services librarian at the scientific library of the National Institutes of Health's National Cancer Institute in Frederick, shows how to find health information on the Internet and how to distinguish between good and bad Web sites. 7-8 p.m., Middletown Branch Library, 101 Prospect St., Middletown. Free. 301-371-7560.
FREDERICK CHESS GAMES, learn from an experienced player. 10:30 a.m.-noon, C. Burr Artz Public Library, 110 E. Patrick St., Frederick. Free. 301-694-1630.
CIVIL WAR MEDICINE TALK, historian James W. Lowry discusses mortuary science and the art of embalming in "Dr. Lowry, Embalming Surgeon"; 19th-century coffins on display. 11 a.m.-3 p.m. Saturday and Sunday, National Museum of Civil War Medicine, 48 E. Patrick St., Frederick. $6.50; seniors, $6; ages 10-16, $4.50; 9 and younger, free. 301-695-1864.
LIBRARY CIVIL WAR SYMPOSIUM, a concert, dramatic portrayal and lecture.
* 11:30 a.m.-12:45 p.m., Civil War-era concert, Greg Adams (banjo) and Chuck Krepley (violin) perform 19th-century music on period instruments and discuss the music and history.
* 1-2 p.m., Mary Ann Jung, an actress and historian, portrays Civil War nurse and American Red Cross founder Clara Barton, www.historyaliveshows.com.
* 2-2:30 p.m., Lecture and exhibit on John Brown's raid on Harper's Ferry, members of the Jefferson County (W.Va.) Black History Preservation Society discuss the African American raiders' participation in the attack; historical documents on display.
The symposium will be held in the Maryland Room, C. Burr Artz Public Library, 110 E. Patrick St., Frederick. Free. 301-694-1630.
FREDERICK SINGLES DANCE, disc jockey, snacks and cash bar. 6:30-10 p.m., Holiday Inn, Francis Scott Key Mall, Routes 85 and 355, Frederick. $7. 301-682-6174.
FREDERICK DISABLED ADULTS SUPPORT, a discussion of parenting concerns, including discipline, nutrition, and medical, school and neighborhood issues; meet other parents facing the same issues. 10:30 a.m. Tuesdays, the Arc of Frederick County, 620A Research Dr., Frederick. Free; registration required. 301-663-0909.
BRUNSWICK BOOK TALK, Raymond A. Moody's "Life After Life: The Investigation of a Phenomenon -- Survival of Bodily Death." 7 p.m., Brunswick Branch Library, 915 N. Maple Ave., Brunswick. Free. 301-834-9065.
FREDERICK BUSINESS START-UP CLASS, "How to Start Your Own Business"; regulatory requirements, legal structures, business plans and money matters; sponsored by the Maryland Small Business Development Center. 6:30-8:30 p.m., C. Burr Artz Public Library, 110 E. Patrick St., Frederick. Free. 301-694-1630.
ADOPTION CENTER OPEN HOUSE, for adults considering adoption, join the "Waiting Parents Meeting," an informal opportunity to get information on the international adoption process; talk with parents who have recently traveled to Russia or Kazakhstan and meet their children. 7-9 p.m., Frank Adoption Center, 3 W. Church St., Suite 2, Frederick. Free; registration requested. 301-682-5025.
CHILDREN'S HISTORICAL NOVEL TALK, for ages 8-11, Kathryn Lasky's "A Journey to the New World: The Diary of Remember Patience Whipple, Mayflower, 1620" and Elizabeth George Speare's "The Sign of the Beaver," both early American historical novels. 4-5 p.m., C. Burr Artz Public Library, 110 E. Patrick St., Frederick. Free. 301-694-1630.
THURMONT AUTHOR LECTURE, local writer Roy VanDerLinden discusses his novel "The Darking." 7 p.m., Thurmont Branch Library, 11 Water St., Thurmont. Free. 301-271-7721.
-- Compiled by TINA TOLL
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