His Ferdinand "Jelly Roll" Morton, c1982 p. 89 (Ferd Morton) p. 211 (Ferd Jelly Roll Morton [no quotation marks around "Jelly Roll"])
His Mister Jelly Roll, 1950.
Int. dict. of Black composers, 1999 (Morton, Jelly Roll; b. Ferdinand Joseph Lamothe, Oct. 20, 1890, New Orleans, La., d. July 10, 1941, Los Angeles, Calif.)
New Grove dict. of Amer. mus. (Morton, Jelly Roll (LaMothe; Lemott, Ferdinand Joseph); b. Oct. 20, 1890, New Orleans, LA, d. July 10, 1941, Los Angeles, CA; jazz composer and pianist)
New Grove dict. of jazz (Morton, Jelly Roll (Lemott (La Menthe, La Mothe), Ferdinand Joseph); b. Oct. 20, 1890, New Orleans, d. July 10, 1941, Los Angeles; composer and pianist)
New Grove (Morton, 'Jelly Roll' (Ferdinand Joseph), b. ?Gulfport, Miss., 9-20-1885; d. Los Angeles, 7-10-1941)
Rust, Brian. Jazz records, 1897-1942, 4th rev. ed., c1978 p. 1099 (Jelly Roll Marton and his orchestra)
Southern, E. Bio. dict. of Afro-Amer. and African musicians (Morton, Ferdinand ("Jelly Roll"); b. Ferdinand Joseph Morton or La Menthe, Sept. 20, 1885, New Orleans, La., d. July 10, 1941, Los Angeles, Calif.; ragtime, blues pianist/jazz bandleader)
Southern, E. The music of Black Americans, c1997 p. 326 (Ferdinand Joseph "Jelly Roll" Morton (1890-1941, né La Menthe); ragtime pianist, composer, bluesman, and jazzman)
Storyville, v. 18, p. 56-58 (article by L. Gushee; baptismal register for St. Joseph's Church, New Orleans: Ferdinand Joseph Lemott, child of Edward Lémott and Louise Monett, b. 10-20-1890; Ferdinand Lamothe, later Mouton, later Morton, very probably same as Jelly Roll Morton)