David A. Kimbell Sr., 83, member of the Board of Regents from 1963 to 1969, died Feb. 23 in Wichita Falls. He earned a petroleum geology degree from the University of Oklahoma and established Alan Drilling Co. before joining Burk Royalty Co. as a geologist and exploration manager. He became president of Burk in 1962. Appointed a regent by Gov. John Connally, he was involved in the development of the UNT campus, working on the university master plan and chairing the committee that studied plans for the Coliseum. He also was president and chair of the board of the Boys and Girls Club of Wichita Falls and served on various bank boards in the North Texas region. He managed and operated ranches in Texas and Oklahoma and managed a large cattle property in Queensland, Australia.