21.   Abu Amr, who received his doctorate from Georgetown University, insisted that he was optimistic as well as skeptical.

22.   According to MIT, two of his graduate students, a Hopi and a Navajo, were the first Native Americans to receive doctorates in linguistics.

23.   After receiving his doctorate at the University of Michigan, Kaczynski took a coveted tenure-track teaching position at the University of California, Berkeley.

24.   After the war, he received a doctorate in clinical psychology from Columbia University and then served with the Army in Munich, counseling soldiers.

25.   After serving as a Navy communications officer during World War II, he resumed his studies at the University of Wisconsin, where he received a doctorate in speech.

26.   After he finishes his trip to Japan, Lee plans to attend ceremonies at Cornell University in Ithaca, N.Y., where he received his doctorate in agricultural economics.

27.   After he received his doctorate, he joined the New School faculty as a lecturer and over the years was chairman of the humanities division and associate dean.

28.   After receiving a doctorate at Southern Baptist Theological Seminary, the Rev. Criswell served in small churches.

29.   After receiving her doctorate from the Sorbonne, she lectured at universities in Berlin and Jerusalem before writing a well-received biography of Jean-Paul Sartre.

30.   After receiving his doctorate from Harvard, Keyes joined the foreign service and served as vice consul at the U.S. Consulate General in Bombay.