 During Lockridge's tenure at Calvary Baptist, a predominantly African-American congregation, his ministry reached more than 100,000 people.He preached at crusades, revivals, religious rallies and evangelistic conferences around the world.He also served in key regional, state and national positions with the Baptist Church, including being elected as the Moderator of the Progressive Baptist District Association, President of the California Missionary Baptist State Convention, and the first president of the National Missionary Baptist Convention of America, where he held all three major positions simultaneously.