During his career at Ames, Dean received numerous other awards and honors. He received the Rockefeller Public Service Award for his outstanding work on spacecraft reentry trajectories. This furnished him the opportunity to pursue research at the university of his choice (University of Manchester in England). For his research on tektites, Dean received the H. Julian Allen Award from the NASA Ames Research Center in 1972. He was awarded the Dryden Lectureship in Research by the American Institute of Aeronautics and Astronautics in 1979 and received NASA's Distinguished Service Medal in 1980.