Friday events:

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.

Scholastic Book Fair, Slater Room, Warren Public Library, books for children, teens, adults.

Music in the Park, “4 Jays,” 50s and 60s, Soldiers & Sailors Park, Pennsylvania Ave. W. at Hickory St., Warren, sponsored by Northwest Savings Bank, 8 p.m.

Women retirees of GTE Sylvania (Osram), lunch, Cable Hollow Golf Course, 1 p.m.