MERCER, PA.

The Mercer County Historical Society, 119 S. Pitt St., will present a program on the United States Presidents from 1885 through 1913. The doors will open at 6:30 p.m. Dec. 19, and the program will begin at 7 p.m. Participation in the discussion group is open to the public and is free. For information, call the historical society at 724-662-3490, email info@mchspa.org, or visit www.mchspa.org.