 During his long career, Busch was responsible for the design and development of many ship classes for the United States Navy and contributed to their production at some of the country's largest shipyards through both World Wars.He retired in 1941, and died on 9 March 1956.After World War I, Busch changed his last name to Du Busc in 1919 - this was most probably due to the large amount of anti-German sentiment that existed in the United States during that time though his family lineage was of Huguenot origins.