Complex sentence: He served as Member of Parliament for the Northwich constituency in Cheshire from 1945 to February 1974, and was Under-Secretary of State for Commonwealth Relations from 1951 to 1954.
Split into simpler sentences: He served as Member of Parliament for the Northwich constituency in Cheshire from 1945 to February 1974. He was Under-Secretary of State for Commonwealth Relations from 1951 to 1954.