Complex sentence: A farmer and livestock breeder by profession, Lea was elected to the provincial House of Assembly in 1915 as a Liberal and became commissioner of agariculture in 1919.
Split into simpler sentences: A farmer and livestock breeder by profession, Lea was elected to the provincial House of Assembly in 1915 as a Liberal. Elected to the Assembly in 1915 as a Liberal, he became commissioner (minister) of agriculture in 1919.