Rev. Edwin Mowl was a former Pastor of the Richmond Vale Circuit of Baptist Churches, in St. Thomas, Jamaica. I am still a member of the Richmond Vale Church. I curiously came upon this request, as I was searching for information about him. I am going to forward your request to Rev. Dr. Horace O. Russell, a historian, and former resident of our community, is senior pastor of Saints Memorial Baptist Church, in Pensylvania, USA, and a former dean of a Theological Seminary there. He will be able to tell you about Rev. Mowl. Best wishes