U.S. Navy Band Country Current will perform. 7 p.m. today. Shafer Park, off Potomac Street, Boonsboro. Bring lawn chair or blanket. Free.
Music by the Lake
Stevens Family Bluegrass Band will kick off the four-concert season. 7 to 8:30 p.m. today. City Park bandshell, Virginia Avenue, Hagerstown. Call 301-791-3132.
Lucas Oil East Coast Pullers and Washington County Tractor Pullers
National truck and tractor pull. Classes include super stock/pro stock tractors, super modified two-wheel drive trucks, modified four-wheel-drive trucks, multi-engine super modified tractors. 6 p.m. today. Rain date is 2 p.m. Sunday. Washington County Agriculture Education Center, 7313 Sharpsburg Pike, south of Hagerstown. $15; free for ages 10 and younger. Call 301-573-1990 or email firstname.lastname@example.org.
Caledonia craft fair
Approximately 150 crafters and artists will sell their wares. Items include jewelry, pottery, baskets, birdhouses, handcrafted furniture and more. Island Fusion will perform from 10 a.m. to 1 p.m. Food will be sold. Homemade root beer samples, 1 to 3 p.m.; Thaddeus Stevens Blacksmith Shop, 9 a.m. to 2 p.m. Event from 9 a.m. to 4 p.m. today. Caledonia State Park, U.S. 30, north of Chambersburg, Pa. Call 717-352-2161.
To Garrison the Fort
Members of the recreated Joshua Beall’s Company, fort staff and volunteers will garrison the fort. Musket and artillery firing presentations, laundry and hearth cooking demonstrations, a uniform and clothing talk, a ranging party and children’s military drills. 10 a.m. to 4 p.m. today and Sunday. Fort Frederick State Park, 11100 Fort Frederick Road, Big Pool. $3; $2, ages 6 to 13; free for ages 5 and younger. Call 301-842-2155 or go to www.dnr.maryland.gov/publiclands/western/fortfrederick.asp.
Retreat through Williamsport
Re-enactors, historians, authors, musicians and storytellers will educate and entertain spectators, and recall the Confederates’ Retreat throught Williamsport. 9 a.m. to 11 p.m. today, and 9 a.m. to 4 p.m. Sunday. Various locations in Williamsport, including Springfield Barn, 9 Springfield Lane, and the C&O Canal National Historical Park at Cushwa Basin at the end of West Potomac Street. Most events are free. Go to www.williamsportretreat.com.
Living history volunteers will portray Brady’s Sharpshooters and recreate the life of a Civil War soldier. Weapons and tactics demonstrations today and Sunday with ongoing interpretations in the camp throughout the weekend. Continues Sunday. Antietam National Battlefield, Sharpsburg Pike, Sharpsburg. Go to www.nps.gov/anti.