The Cody Marlowe Band will open First Presbyterian Church of Gainesville’s first Local Mission Expo with a free concert at 7 p.m. Friday, Aug. 23, in the Field of Dreams behind the church on South Enota Avenue. The two-day expo focuses on service to the more than 15 local community organizations the church supports with its budget and with volunteers in agency programs. During the two-hour concert Friday, church volunteers will share their experiences working in the programs.