/rok"euh fel'euhr/ , n.
1. John D(avison) /day"veuh seuhn/ , 1839-1937, and his son John D(avison), Jr ., 1874-1960, U.S. oil magnates and philanthropists.
2. Nelson A(ldrich) , 1908-79, U.S. political leader: governor of New York 1959-73; vice president of the U.S. 1974-77 (son of John D. Rockefeller, Jr.).