Mrs. McCracken offered courses until the early 1930s, when  increasing administrative responsibilities prevented her from continuing the classes. In 1935/36, after a lapse of three years, Mrs. Lady Kate Medders, who had taught previously in the English Department, offered new courses designed in part to meet requests for training of teacher-librarians for school library positions. Thirty-three students enrolled in the 1935/36 summer term for the four courses taught by Mrs. Medders and Miss Beatrice Holt, a visiting instructor from the School of Librarianship at the University of Denver.

The four-year undergraduate program that was being offered at the time led to the A.B. or B.S. degree with a 30 semester-hour major in Library Service. A fifth year post baccalaureate program leading to the B.S. in L.S. degree was provided for those seeking professional library careers. An undergraduate minor also was available to those interested in teacher-librarian positions.

Students in the B.S. in L.S. program wishing to prepare for professional positions in the field were expected “to cultivate wide reading interests and train themselves to assimilate information.” Their general education background should equip them “to read intelligently in sociology, economics, science, education, journalism, psychology, music, and other departments of learning.” They also were required to have “a background in foreign and national histories” and a working knowledge of at least one foreign language.

Following the successful launching of the Department of Library Service in 1939, new courses continued to be introduced and a series of Summer Clinics for School Librarians was begun. The clinic program included noted speakers in the field, panel discussions of practical problems, workshop periods, and classroom seminars. The series was well received, and in subsequent years twenty such annual clinics were held. Due to its growth in enrollment and reputation, the Department soon emerged as a principal supplier of librarians throughout the state. The only other formal programs for preparing librarians were at Texas State College for Women (now Texas Woman’s University) and Our Lady of the Lake College in San Antonio. The program at the University of Texas at Austin did not begin until 1948.

Dr. Arthur M. Sampley was appointed Director of Libraries and of the Department of Library Service in 1944, when Dr. Hoole resigned to become Director of Libraries at the University of Alabama. Dr. Sampley continued in this dual role until his appointment in 1953 to the deanship of the College of Arts and Sciences. During these years and until her retirement in 1953, Mrs. Lady Kate Medders continued to serve as the guiding spirit for faculty and students alike. During the late 1940s and early 1950s, new courses were added in books and materials for children and young adults, academic library administration, and special libraries.