CANFIELD, Ohio--(BUSINESS WIRE)--Farmers National Banc Corp. (“Farmers” or the “Company”) (NASDAQ: FMNB), the holding company for The Farmers National Bank of Canfield (“Farmers National Bank”), and Tri-State 1st Banc, Inc. (“Tri-State”) (OTC Pink: TSOH.OB), the holding company for 1st National Community Bank (“1st National Bank”), today announced a tentative election deadline of 5:00 p.m., Eastern Daylight Time, September 21, 2015 (the “Election Deadline”) for shareholders of Tri-State to elec