On March 7, 1915, Reverend P. M. Mayfield was called to pastor Saint Paul Baptist Church. Under his leadership, the church experienced significant growth in membership and spiritual interaction.  He was a wise man who knew the need for social and spiritual programs for everyone. Therefore, auxiliaries and clubs were organized to embrace the entire church and community.

 Annual social events, such as Easter egg hunts, hayrides and picnics were a vital part of the Church’s program for the youth and young people. Normal programming included the Missionary Circles, Baptist Training Union, Ushers, Choirs and Bible classes, the Union Sewing, Helping Hands, Every Ready and Men’ s Progressive Clubs. In 1938, Boy Scouts Troop No. 25 was organized and is the oldest Black Troop in Charlotte. Saint Paul was also the first Black church in the City to organize a Junior Usher Board. During the same period, the Musical Department expanded to include the Junior Choir and the Vocal (Gospel) Choir. Saint Paul’s membership had grown from a mere thirty to over one thousand. The years between 1915 and 1941 were the turning point in the history of the Church.

 Reverend P.M. Mayfield retired in 1943, as one of the most respected ministers in the Charlotte community.   He is remembered for undying concern for his members and his ability to hold an audience spellbound. “Reverend Mayfield often said a minister needs the same voice training as a singer because it is just as necessary to be clearly understood and hold your audience’s attention.” Reverend Mayfield served Saint Paul Baptist Church faithfully for twenty-eight years. The members paid tribute to his loyalty on April 23, 1943, by making him Pastor Emeritus of the church and retiring him on full salary (thirty dollars per week) for the remainder of his life. This agreement was recorded at the courthouse, making it legal and binding.