Farmers' market at Riverside Park, 8:30 a.m.-1 p.m. Vegetables, meat, eggs, baked goods and more. Concession available.

"Musical Memories" at Caribou Historical Center and Museum, with music and comedy from the 1940s through 1960s. Open to public 12-4 p.m.; all are welcome.

Willette/Brewer family reunion at the Southern Aroostook Agricultural Museum, starting at 10 a.m. Potluck dinner. FMI: (506) 328-9867, Pamela Reid, after 2 p.m.

Community Open House at Crystal Wesleyan Church to honor Paster Peter Main and wife Joan, who are retiring. 1-3 p.m. in downstairs meeting room. Light refreshments; card collection basket.

15th annual summer musicale, Opus XV, 2 p.m. at Gray Memorial United Methodist Church. Dan Ladner, organist; Andrew Sullivan, violinist; Molly Bouchard, vocalist. Tea and refreshments following; donations accepted.

Bridge at the Putnam House Senior Center, 48 Court St., 10 a.m.-2 p.m. Lunch available.

Free college planning workshop, Financial Aid, at Presque Isle CareerCenter, 9 a.m. Preregister at 1 (800) 281-3703 or visit meoc.maine.edu.

Senior gatherings at the Putnam House 48 Court St. Houlton, Tuesdays and Thursdays, 9-3 p.m. Games, homemade snacks, coffee and socializing.

Potato virus detection training workshop at the Aroostook Research Farm, 59 Houlton Rd., 10 a.m.-12 noon for inspectors; 2-4 p.m. for growers/field staff. Free; preregistration requested: pppmb.cals.cornell.edu/content/potato-virus-detection-training-workshop-presque-isle-maine. Rain date July […]

Farmers' market, 4-7 p.m. in the Brookside Inn parking lot. FMI: 370-0379.