After the German occupation of Denmark, the Bohr family elected to remain in the country despite the fact that the Nazis considered some family members as Jews because Ernest's grandmother Ellen Adler was Jewish.
Efter at Danmark blev besat i 1940, valgte familien Bohr at blive i landet til trods for at nazisterne betragtede familien som jøder, idet Ernest Bohrs farmor Ellen Adler var jøde.