Historical society brown bag lunch, a discussion of the changes to the Maryland farming industry since the state’s tobacco growers turned to other types of agriculture. Noon-1 p.m., Calvert County Historical Society, 70 Church St., Prince Frederick. Free. 410-535-2452 or firstname.lastname@example.org.
National Active and Retired Federal Employees Association meeting, for Calvert CountyChapter 1466. Featuring a presentation by United Seniors of Maryland. 1 p.m., Calvert Pines Senior Center, 450 W. Dares Beach Rd., Prince Frederick. Free. 410-586-1441.
“The Age of the Steamboat Wharves,” part of Calvert Museum’s Paleontology, the Estuarine Environment and Maritime History series of talks. 7 p.m., Calvert Marine Museum, 14200 Solomons Island Rd., Solomons. $7; seniors and military, $6; ages 5-12, $2. 410-326-2042 or www.
Autism-Asperger Association meeting, a presentation on the biological causes of autism by George Washington University professor Valerie Hu. 7-9 p.m., Courthouse Square, 205 Main St., Prince Frederick. Free. Cwallace@
Book talk, a discussion of “Jamrach’s Menagerie,” by Carol Birch. 7 p.m., Leonardtown Library, 23250 Hollywood Rd. Free. 301-475-2846.
Friday, March 16
American Sewing Guild meeting, 11:30 a.m.-3 p.m., Charlotte Hall Library, 37600 New Market Rd. Free. 301-705-7586.
Steak and shrimp dinner, platters and sandwiches available, eat-in or carry-out. 5-8 p.m., American Legion Post 221, 21690 Colton Point Rd., Avenue. 301-769-4346 or www.
St. Patrick’s Day dinner, ham or corned beef, with cabbage. Hosted by the Legion auxiliary. 6-8 p.m., American Legion Post-La Plata, 6330 Crain Hwy. $10. 301-934-8221.
Saturday, March 17
Yard sale, rain or shine. 8 a.m.-
1 p.m., Mechanicsville Volunteer Rescue Squad, 28120 Old Flora Corner Rd., Mechanicsville. Table rental, $10. 240-298-0216 or 301-481-4193.
Adult education program orientation, for anyone seeking a high school diploma. 9 a.m., Hunting Creek Annex, 4105 Old Town Rd., Huntingtown. Free. 410-535-7382.
Book sale, hosted by Friends of St. Mary’s County libraries. 10 a.m.-
5 p.m. Saturday and noon-3 p.m. Sunday, St. Mary’s County Fairgrounds, 42455 Fairgrounds Rd., Leonardtown. 301-373-5238.
Fossil hunters workshop, for kids in grades two through five. Activities and a scavenger hunt. 10-11 a.m., Calvert Library Twin Beaches branch, 3819 Harbor Rd., Chesapeake Beach. Free. 410-257-2411; 2-3 p.m., Calvert Library Prince Frederick branch, 850 Costley Way, Prince Frederick. 410-535-0291 or 301-855-1862.
St. Patrick’s Day dinner, ham, corned beef and cabbage; carry-outs available. 4-7 p.m., Waters Memorial United Methodist Church, 5400 Mackall Road, St. Leonard. Adults, $14; children 6-12, $7. 410-535-