 When the Liberal Party joined the National Government in 1931, there were few opportunities for Liberals to stand as candidates at the ensuing general election, and Alderton did not stand.In Colchester as in many other places, the Liberals decided not to oppose the sitting Conservative Oswald Lewis and Alderton went to the extent of publicly supporting him against his Labour challenger.Although she did not stand for parliament again she remained committed to supporting the Liberal Party, even after it left the National Government in 1933.