Complex sentence: He was Parliamentary Private Secretary to Chancellor of the Exchequer Winston Churchill from 1926 to 1929 and held junior ministerial office as Parliamentary Secretary to the Ministry of Food in 1940--41.
Split into simpler sentences: He was Parliamentary Private Secretary to Chancellor of the Exchequer Winston Churchill from 1926 to 1929. The Liberal Party and the Popular Front, English Historical Review (2006) He held junior ministerial office as Parliamentary Secretary to the Ministry of Food in 1940--41.