Derek Cooper was born in 1912.
Derek Dingle died in 2004.
Derek Senior died in 1988.
Derek Bowett died in 2009.
Derek Weiler died in 2009.
Derek Keppel died in 1944.
Derek Raymond died in 1994.
Derek Bryan died in 2003.
Derek Hersey died in 1993.
Derek Cole died in 2006.
Derek Patmore died in 1972.
Derek Brewer died in 2008.