R.M. Redd is a son of the late Zelmer Morris Redd and Willie Victoria Phillips Redd. He was born in Lincoln County, Mississippi. R.M. is married to Sylvia Ann Smith Redd, and they are the parents of five children, Timothy Morris, Sylvia Denise, Tammy Loretta, Jeffery Bryant and Christopher Allen. He is a great-grandson of Constantine Montgomery, the man who took a stance to protect his black neighboring Robinson family from the Ku Klux Klan after the group decided the family members needed to be whipped because they were more prosperous than some of their white neighbors.