Living volutes, 1970 t.p. (John Eleuthère duPont) cover (John E. du Pont)
No holds barred, c1996 CIP t.p. (John E. du Pont) galley (b. Nov. 22, 1938)
New York times WWW site, Dec. 10, 2010 (in obituary published Dec. 9: John E. du Pont; b. John Eleuthère du Pont, Nov. 22, 1938, Philadelphia; d. Thursday [Dec. 9, 2010], Laurel Highlands State Prison near Somerset, Pa., aged 72)