He was a Baptist minister by trade as well as a crucial figure in African American history who made a lasting national impact as a poet, playwright, gospel music composer, orator and civil rights leader.

[3] A 45 RPM exists of two Brewster songs, "Farewell" and "Not One Word," being sung by members of the United Singing Union of Memphis, Tennessee.

[4] In addition to his vast legacy in the genre of black gospel music, Brewster had a formative influence on a young Elvis Presley, who occasionally attended services at East Trigg Avenue Baptist Church and listened to Brewster's sermons broadcast on Sunday nights on the "Camp Meeting of the Air" over Memphis radio station WHBQ.

Dewey Phillips, radio host of WHBQ's Red, Hot and Blue often interviewed Dr. Brewster who invited all listeners "black and white, to Sunday night services at East Trigg.

"[5] According to Presley biographer Peter Guralnick, "Dr. Brewster constantly preached on the theme that a better day was coming, one in which all men could walk as brothers, while across Memphis Sam Phillips listened on his radio every Sunday without fail.