WASHINGTON — A three-part workshop, “Genealogy: Build Your Family Tree,” will be offered from 7 to 9 p.m. on Wednesdays, June 5, 12 and 19, at Gibbs Library, 40 Old Union Road.

Workshop instructors Norman and Libby Casas will teach participants how to use Internet-based programs such as www.Ancestry.com to find ancestors.

Space is limited. Registration is required. Participants can bring a laptop or reserve a library computer on a first-come, first-serve basis. For more information or to register, call 845-2663.