First Southern Church, Muscle Shoals, formerly Okolona Church, will celebrate its 110th anniversary June 23–24. There will be a service and a reception June 23, 4 p.m. On June 24 Sunday School will be at 9:45 a.m., and the service will be at 10:45 a.m. Lunch will be at noon. Tammy McCallister will sing at 1:15 p.m. Former staff and…