Dr. Mattie Moss-Clark: From 1968 until her ascension in 1994, served as international Minister of Music for COGIC. She had a profound impact on gospel music by introducing the 3 part harmony that is prevalent in the genre today.  This Gospel  Matriarch birthed seminally historic recordings, and through her recordings and training she changed the sound of music impacting her many pupils, including her daughters, the renowned Clark Sisters.