MPs
- Mr James Gilbert December 14, 1918 - November 15, 1922
- Mr James Gilbert November 15, 1922 - December 6, 1923
- Mr James Gilbert December 6, 1923 - October 29, 1924
- Mr Harry Day October 29, 1924 - October 27, 1931
- Sir Ian Horobin October 27, 1931 - November 14, 1935
- Mr Harry Day November 14, 1935 - September 16, 1939
- Mr John Martin February 10, 1940 - April 6, 1948
- Mr Roy Jenkins April 29, 1948 - February 23, 1950