De'ath said his German heritage was a problem during and after World War II .
De'Ath grew up in Elstree , Hertfordshire , England in a mixed German -- British family as his mother was German .
De'ath said De'Ath German German heritage was a problem during and after World War II .
De'Ath grew up in Elstree , Hertfordshire , England in a mixed German -- British family as his mother was German .