Knox Museum will present its annual holiday open house at Montpelier, Route 131 at the St. George turn off Route 1, Saturday and Sunday, Dec. 5 and 6, from 1 to 4 p.m.

Two floors will be decorated for the season in 18th-century style, and live entertainment and complimentary refreshments will be provided. Admission is free for all, and everyone is invited to attend. In lieu of admission, canned and dry goods will be accepted at the door for distribution through the Thomaston Food Pantry. Cash donations to support Knox Museum’s programs are always welcome.

At 1 p.m. Saturday, popular duo Castlebay — Julia Lane and Fred Gosbee — returns to Knox Museum with their Celtic harp, guitar, fiddle, tin whistle and traditional vocal harmonies. At 2 p.m., Georges River Consort, a recorder ensemble under the direction of Jo Anne Parker, will perform in Montpelier’s Oval Room. Suomalaiset Jouset, the kantele ensemble of South Thomaston’s Finnish Heritage House, will perform at 3 p.m., offering a traditional holiday lap harp performance led by director Celia Jones.

At 1 p.m. Sunday, The Teacups will perform instrumentals and sing three-part harmony. Harborside Harmony, under the direction of June Haining, will perform at 2 p.m.; and the five-piece band The Rusty Hinges, including a renowned bass player, mandolin player and guitarist, will close out the weekend at 3 p.m. with a variety of holiday selections, including instrumentals.

On both days, visitors will be able to stroll from room to room at their own pace, enjoying the early American holiday decor provided by Anne Perkins, Bruce Habel, Debbie Rogers, Mary Ann Carey, Barbara Backus, Pat Kristiansen, Virginia Hodge, the DAR, Weskeag Farms, Hoboken Gardens and The Green Thumb, among others.

The Carriage Shop, the gift shop at Montpelier, offers many unusual and well-priced holiday items, and a generous assortment of homemade goodies also will be available for sale at the baked goods table both afternoons. Free refreshments will be served in the ground level’s Reception Hall.

For more information, call 354-8062 or email info@knoxmuseum.org.

Courier Publications’ A&E Editor Dagney C. Ernest can be reached at (207) 594-4401, ext. 115; or dernest@courierpublicationsllc.com.