The Messenger, March 7, 2012 The Obion County Public Library will host its “Nifty Fifty Bingo” event Thursday from 9:45-11:15 a.m. in the conference room at 1221 East Reelfoot Ave. in Union City. Participants must be at least 50 years old to play, a spokesman said. Bingo will continue the second Thursday of each month.