Career

Dunn received both undergraduate and graduate degrees in aeronautical engineering from the California Institute of Technology () in Pasadena, California. During that time the Guggenheim Aeronautical Laboratory at (GALCIT), a prestigious aeronatuical engineering research facility, was led by Theodore von Kármán. By 1943 Dunn had joined the faculty and become a naturalized United States. citizen. In 1943 and 1944, von Kármán and Frank Malina, who had been doing rocket research at GALCIT, began using Jet Propulsion Laboratory () in the names of their projects.

Malina hired Dunn to be the assistant director of in 1945.

Dunn took over as acting director when Malina left and was formally appointed as director in 1947. Dunn resigned from this position in 1954.

William Hayward Pickering, who had been project manager for the Corporal missile under Dunn, succeeded him as director After leaving Dunn led the Atlas missile program at the Ramo-Wooldridge Corporation, a predecessor of Thompson Ramo Wooldridge. In 1963 he moved to Aerojet General, and he died in 1979.