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

Caribou Choral Society rehearsals will begin at 7 p.m. each Tuesday evening in the Holy Rosary Church basement. All local singers interested in advanced four-part music are welcome.

Red Cross blood drive, 12:30-5:30 p.m., Fort Fairfield K of C Hall. Download Red Cross blood donor app, visit RedCrossBlood.org or call 1 (800) 733-2767 FMI or an appointment.

Free workshop, Essentials of College Planning, 9 a.m. and again at 12 p.m. at the Presque Isle CareerCenter. FMI: 1 (800) 281-3703 or meoc.maine.edu.