His Het Noordatlantisch licht, 1983 t.p. (Willen de Kooning) p. 114 (b. 4/24/04)
LC data base, 10/3/83 (hdg.: De Kooning, Willem, 1904-)
N.Y. times, Mar. 20, 1997 (Willem de Kooning; abstract expressionist; b. Apr. 24, 1904 in Rotterdam; emigrated to U.S. in 1926; d. Mar. 19 in East Hampton, L.I. at age 92)
Willem de Kooning, 2011 title page (Willen de Kooning) page 45 (born 1904 in Rotterdan, died March 1997; abstract expressionist)