Heavily influenced by Bill Monroe, the “Father of Bluegrass” in the 1940s and ’50s, gospel music in the South began to shift into bluegrass gospel, a style that combines both genres. In Bluegrass Gospel: The Music Ministry of Jerry and Tammy Sullivan, anthropologist and journalist Jack Edward Bernhardt explores the lives, music, and ministry of acclaimed father-daughter bluegrass gospel performers and recording artists Jerry (1933–2014) and Tammy Sullivan (1964–2017) of southwest Alabama.