After World War II, pioneering A&R managers who transitioned influentially to record production as now understood, while sometimes owning independent labels, include J. Mayo Williams and John Hammond. Upon moving from Columbia Records to Mercury Records, Hammond appointed Mitch Miller to lead Mercury's popular recordings in New York. Miller then produced country-pop crossover hits by Patti Page and by Frankie Laine, moved from Mercury to Columbia, and became a leading A&R man of the 1950s.
After World War II pioneering A&R managers who transitioned influentially to record production as now understood while sometimes owning independent labels include J Mayo Williams and John Hammond Upon moving from Columbia Records to Mercury Records Hammond appointed Mitch Miller to lead Mercury's popular recordings in New York Miller then produced country-pop crossover hits by Patti Page and by Frankie Laine moved from Mercury to Columbia and became a leading A&R man of the 1950s