Grady was reared in rural Olla, Louisiana. He received a B.S. in Chemical Engineering at Louisiana Tech in 1965, then completed the course work for a masters in 1969.He worked ten years as Plant Engineer, Process Superintendent and Senior Engineer. Life then took a sharp turn, and he became a minister.
He retired in 2007, and uses his skills as a photographer while traveling and birding and enjoys entertaining groups with his stories.