In the early 1930's we were introduced to Gospel by no other than Thomas A. Dorsey. In 1932 he co-founded The National Convention of Gospel Choirs and Choruses. Which was an organization dedicated to training musicians from all over the U.S. that is still working their magic to this day! Dorsey actually ended up working/training with the first generation of gospel music. That includes Sallie Martin, Mahalia Jackson, Roberta Martin, James Cleveland, and more. Gospel, the teaching of Christ.