EUNICE — Mary Lou Vinson, three-term city councilor, resigned her post last week, according to Eunice City Clerk Candy Brito. Vinson, reporting her age at 75 years in 2012 when she was first re-elected, earned her second re-election in an uncontested race in March 2016. “She came in last week and told us about it. It’s her health. She lost …