Warren County Historical Society, 210 Fourth Ave., 8:30 a.m. to 4:30 p.m.
Warren Public Library, Market St., Warren, open, 10 a.m.-5 p.m.
Community lunch, free to the public, The Salvation Army, 311 Beech St., noon.
Wilder Museum, Irvine, open, 1-5 p.m.
"Instants," paintings by Spanish painter Adela Arrufat AND "Gifts of Nature," large-scale oil pastel paintings of flowers and still life by North Carolina artist Stephanie Neely, Crary Art Gallery, 511 Market St., Warren, 11 a.m.-8 p.m.
Music in the Park, Barbara Jean & Razz featuring Pete Pepke, jazz, Soldiers & Sailors Park, Pennsylvania Ave. W. at Hickory St., Warren, sponsored by Northwest Savings Bank, 8 p.m.
Annual book sale and bake sale, Youngsville Public Library, 10 a.m.-4 p.m. each day; hot dogs, pop/water for sale on Saturday from 11 a.m. to 3 p.m.
Women retirees of Osram Sylvania/GTE, lunch, Dinner Bell Restaurant, 15 Center St., Frewsburg, N.Y., 1 p.m.; carpool from Warren Shurfine, noon.
Warren High School Class of 1958, meet and greet hot dog roast, Betts Park (723-7378).