In 1877, Elder J.M. Key became pastor of Douglasville Baptist Church, stepping in after Rev. Mr. Moore declined to serve that year. Elder Key brought seasoned pastoral leadership, having been licensed to preach in 1845. During his tenure, the Concord Missionary Baptist Association was organized on October 13, 1877 with Douglasville as one of six founding churches. Elder Key moderated the meeting, and delegates J.M. Key and N.M. Hackney represented the church, which had grown to 60 members and was meeting four times a month. By the next year, the association dropped “Missionary” from its name, and the church saw further leadership under pastors T.J. Johnston (1878–1880, 1882) and Robert Baber (1881), though little else is recorded about their service. Mr. E.A. Morris, a church leader, contributed to association committees on preaching and Sabbath Schools, reflecting the church’s early commitment to education and discipleship. Throughout the early 1880s, worship frequency shifted, and by 1882 the church had increased to 74 members. In 1881, the congregation recorded its first formal exclusions of members for disciplinary reasons—a common practice of the era. In 1883, Elder W.A. Lane returned as pastor, overseeing a membership of 81 and initiating the church’s first known contribution to foreign missions, marking a renewed sense of outreach and growth.