Donald Dominic Limoncelli, 93, an Army colonel and Chemical Corps officer who retired as a White House special assistant in 1964 and then worked at the National Aeronautics and Space Administration, died Jan. 30 at a hospital in Raleigh, N.C. He had been living at his daughter's home in Franklinton, N.C., since suffering a stroke in 2001.

Col. Limoncelli was a native of Elmira, N.Y., and a graduate of the University of Buffalo. He received a master's degree in bacteriology at the University of Wisconsin.

He served in the Army in Europe during World War II and as an inspector of concentration camps after the war. His honors included a Purple Heart, received for injuries suffered when his ship was sunk by a German submarine in the English Channel.

He was later deputy commander of the Chemical Corps laboratories, commandant of the corps' orientation school, commander of a special operation division at Fort Detrick and deputy commander of the corps' Combat Development Agency.

He was also chemical, biological and radiological officer for the allied command in Southern Europe and at the Washington Military District. He was special assistant to the White House military aide in the Kennedy and Johnson administrations.

Col. Limoncelli was medical program administrator in NASA's office of occupational medicine and environmental health after he retired from the Army. He helped set up the NASA stress lab and was a consultant to sports centers after he retired again in 1975.

He was member of St. John Neumann Catholic Church in Reston, where he lived until the late 1990s.

Survivors include his wife, Doris Limoncelli, and two children, Don M. Limoncelli and Mary Ann Madison, all of Franklinton; a granddaughter; and three great-grandchildren.