As Dean of the School of Applied Arts and Sciences at Northwestern State, George Thomas Walker organized the first four-year degree program in Nursing in Louisiana in 1949. Walker, who spent nearly 40 years in higher education in Louisiana, served as Dean of the School of Applied Arts and Sciences for 10 years before becoming Dean of Administration. He then went on to serve as President of Northeast Louisiana University for 18 years.

Walker was an instructor of commerce at Northeast Junior College in the mid-1930s and was an assistant professor of business administration and accounting at Southeastern Louisiana University and at the University of Southwestern Louisiana. He also served five years as the State Supervisor of Business Education for the Louisiana Department of Education.