Complex sentence: At the 1931 general election, he was elected as the Liberal Party Member of Parliament (MP) for Colne Valley, where his father Frederick Mallalieu had been MP from 1916 to 1922.
Split into simpler sentences: At the 1931 general election, he was elected as the Liberal Party Member of Parliament (MP) for Colne Valley. His father Frederick Mallalieu had been MP here from 1916 to 1922.