If I had to name one, I think it would be Masters of the Modern Blues: Robert Nighthawk and Houston Stackhouse. If I could get away with bringing 9 more, they would be
The Complete Trix Recordings, Robert Lockwood
His Best 1947 to 1956, Muddy Waters
The Blues World of Little Walter, Little Walter
Some Groovy Fours, Tiny Grimes
Playing With Strings, Lonnie Johnson
Remastered 1935-1938, Blind Boy Fuller
The Complete Imperial Recordings, T-Bone Walker
Exile on Main Street, The Rolling Stones
The Very Best of Otis Redding