Robert C. Duncan - engineer - was born in 1923.
Robert C. Duncan - engineer - died in 2003.
William C. Duncan was born on 1820-05-18.
Robert C. Baltzell was born in 1879.
Robert C. Fritz was born in 1920.
Robert C. Michelson was born in 1951.
Robert C. Broomfield was born in 1933.
Robert C. Murphy was born in 1926.
Robert C. Seacord was born in 1963.
Robert C. Bonner was born in 1942.
Robert C. Jones was born in 1937.
Robert C. Bolles was born in 1928.
Robert C. Gunderson was born in 1931.