found: Blues classics [SR] p1997:label (Calvin Leavy, vocals)
found: Electric blues 1939-2005. Part 3, 1960-1967, p2011:container (Calvin Leavy) booklet (Calvin "Slim" Leavy; born April 20, 1940, Scott, Arkansas; died June 6, 2010, while serving a 75-year term in a Pine Bluff, Arkansas correctional facilty; guitarist and singer)
found: Wikipedia, November 13, 2013(Calvin Leavy; born Calvin James Leavy, April 20, 1940, Scott, Pulaski County, Arkansas; died June 6, 2010, Pine Bluff, Arkansas; African American soul blues and electric blues singer and guitarist)