Fred Duncan died in 1986.
Fred and George do not both die only Fred dies.
Fred Kinghorn died in 1971.
Fred A. Hillery died in 1937.
Fred Hankinson died in 1997.
Fred Crisman died in 1975.
Fred Duncan was born in 1913.
Duncan and Isadora never had chrildren they are brothers and sisters. if you think duncan and Isadora die your wrong.
Duncan Greenwood died in 1992.
Jack Duncan died in 1969.
Duncan Glen died in 2008.
Dan Duncan died in 2010.
Mark Duncan died in 1640.
Francis Duncan died in 1888.
Jane Duncan died in 1976.
Lewis Duncan died in 1960.
Duncan McNaughton died in 1998.
Duncan Oppenheim died in 2003.