found: His Black magic [SR] 197-:label (Magic Sam) container (b. Sam Maghett, in Mississippi; moved to Chicago 1950; first performed publicly in 1955, at age 18; Chicago blues singer & player)
found: Harris, S. Blues who's who(Maghett, Samuel, aka Good Rocking Sam, Magic Sam, Magic Singing Sam, b. Grenada, MS, 2-14-1937, d. Chicago, Il, 12-1-1969)
found: Oxford music online, November 8, 2013:Encyclopedia of popular music (Magic Sam; born Samuel Gene Maghett, February 14, 1937, Grenada County, Mississippi; died December 1, 1969, Chicago, Illinois; after moving to Chicago in 1950, he changed his name from Good Rocking Sam to Magic Sam)
found: Wikipedia, November 8, 2013(Magic Sam; Samuel "Magic Sam" Gene Maghett; born February 14, 1937, Grenada, Mississippi; died December 1, 1969, Chicago, Illinois; an American Chicago blues musician known for his distinctive tremolo-guitar playing)
notfound: New Grove dict. of American music;Feather, L. Encycl. of jazz in the 60s;Baker's, 7th ed.