"Railroads of Caribou" at the Caribou Historical Center and Museum. Open 12-4 p.m. Saturdays; 1033 Presque Isle Road. All are welcome.

Free flu shot drive-up clinic by TAMC, 10 a.m.-12 noon at Gould Memorial Hospital's Crown Ambulance garage.

Ernie Haase and Signature Sound live in concert, 3 p.m., Military Street Baptist Church, 307 Military St. Sponsored by Greater Houlton Christian Academy. Tickets: 532-0736; office@ghca.com.

Roosevelt Day at Maysville Museum, 6-8 p.m. See Teddy Roosevelt artifacts. Book signing with author Robert Louis DeMayo. Reservations required; $10/person. FMI: 762-1151 or pihistoricalsociety@hotmail.com.

Pizza 'n Art for Teens and Tweens, 11:30 a.m.-1:30 p.m. at Wintergreen Arts Center. Artist Denise Violette on creating sugar skulls. $20/person. Space is limited. FMI: 762-3576.

Halloween party hosted by Molunkus Valley Sno-Drifters at the clubhouse, 58 North St. Free for children up to 15 (no older children). Games, hayride, costume parade, prizes. FMI: Deb, 267-1200.

PRESQUE ISLE: “Imagine” musical revue by Presque Isle Community Players, 7 p.m., UMPI’s Wieden Hall Auditorium. Admission $10. Tickets available at picplayers.com, Aroostook Centre Mall, Goin’ Postal, UMPI campus store […]

Annual harvest supper at Gray Memorial United Methodist Church. Sitting at 5 p.m., take-outs 5:30 p.m. Tickets available at church office, 498-2103. Adults $15, children 12 and under $7.

Chicken stew and ployes supper, all you can eat, 4-6 p.m. at Portage Lake Town Hall. Hosted by Portage Lake ATV Club. Everyone welcome.