It established a masters program shortly thereafter and the first Ph.D. Dr. Amry Vandenbosch, a well known scholar in international relations and one of the drafters of the United Nations Charter in 1945, served as Head of the Department from 1931 until 1957. As political science became more quantitative in the 1960s, the Department shifted its emphasis. This began in 1963 when Dr. S. Sidney Ulmer, a renowned scholar in judicial behavior, was recruited as Chair. Professors such as Malcolm Jewell, Dean Jaros, Bradley Canon and William Lyons soon established a pattern of producing highly visible and highly influential scholarship, one that continued into the 1980s and 1990s through the work of researchers such as Lee Sigelman, William Lowery, Pamela Conover, Stanley Feldman, and Bill Berry. Several faculty members became leaders in the profession, serving as editors of major journals, presidents of regional associations or chairs of American Political Science Association sections. It is a tradition that has carried through to the present, despite a shrinking faculty size and a growing workload, as the prominent careers of long-serving professors such as Mark Peffley, Karen Mingst, and Don Gross can attest. Over the last 40 years, the graduate program also has produced its share of influential politicial scientists, including Micheal Giles, Jim Garand, Todd Shields, Kirby Goidel, Neal Woods and Laura Neack. The undergraduate program, meanwhile, has increased considerably in size over time; more than 500 declared majors has now become the norm. These students regularly go on to important careers not only in government, politics, and policy, but also in law, business, medicine, and other occupations.