Mulch sale, to benefit the Patuxent High School band. Place orders by March 29 for free delivery of 20 bags or more. The delivery and on-site sale date is April 14. Patuxent High School, 12485 Southern Connector Blvd., Lusby. $4 a bag. 410-535-7806 or Kimmitchell@gmail.com.
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.
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.
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-
Basket bingo, proceeds benefit the fire department. 5 p.m., Mechanicsville Volunteer Fire Department, 28165 Hills Club Rd. $20; extra books, $5; specials, $1. 301-884-5680 or www.mvfd.com.
Open skate night, for all ages. Sponsored by St. Mary’s County Department of Recreation and Parks. 6-9 p.m., Leonard Hall Recreation Center, 23145 Leonard Hall Dr., Leonardtown. $5; skate rental, $2.50. 301-475-4200, Ext. 1800.
Ballroom and swing dance, no experience necessary; singles welcome. Lesson, 7-8 p.m.; dance, 8-11 p.m. Take a snack to share; water and soda will be provided. Sponsored by the Knights of Columbus of Holy Face Church. 7-8 p.m., Little Flower School, 20410 Point Lookout Rd., Great Mills. $8; seniors and students, $5. 301-645-8509 or somdballroom@
Nature Explorers program, for ages 6-9. Learn to use a compass and search for goodies hidden in the park. 2 p.m., Flag Ponds Nature Park, Flag Pond Pkwy., Lusby. $3. 410-535-5327.
Monday morning movies, stories, songs and movies for children and their caregivers. 10-11 a.m., Calvert Library Prince Frederick branch, 850 Costley Way. Free. 410-535-0291 or 301-855-1862.
Mulch distribution, for residential and commercial use, first-come, first-served, through March 24. Charles County landfill, 12305 Billingsley Rd., Waldorf. Free. 301-932-3440.
Adult education program orientation, for anyone seeking a high school diploma. 5:30 p.m., Appeal Elementary School, 11655 H.G. Trueman Rd., Lusby. Free. 410-535-7382.
Kids nature program, for age 5 and younger, a short hike to search for signs of spring. 10 a.m., Kings Landing Park, Kings Landing Road, Huntingtown. $3. 410-535-5327.
Weight-loss surgery support group, for those who have had the procedure or have it under consideration. 7 p.m., Greater Waldorf Jaycees Community Center, 3090 Crain Hwy., Waldorf. Free. 301-645-3149.
Retirement workshop, hosted by the Calvert County Office on Aging and the Women’s Institute for a Secure Retirement. 6:30-7:30 p.m., Calvert Pines Senior Center, 450 W. Dares Beach Rd., Prince Frederick. Free. 410-535-4606 or 301-855-1170.
“Discussion Topics” workshop, the Calvert Library is seeking input on content for future roundtable events at the public libraries. 7-8:30 p.m., Calvert Library Prince Frederick branch, 850 Costley Way. Free. 410-535-0291 or 301-855-1862.
Mail: Community Calendar,
Southern Maryland Local Living,
The Washington Post, 3 Church Cir., Annapolis, Md. 21401.