Jack Nelson Marshall (July 24, 1930 – August 27, 2018)
Jack Marshall was the pianist for the Blackwood Brothers from 1949-1959. He also performed with the Memphians and the Hartford Quartet. Jack eventually left the music field and became a successful businessman in the food industry, founding his own company, Jack Marshall Foods which at one point included more than 50 Kentucky Fried Chicken franchises.
Also credited as Jackie Marshall.