Complex sentence: Gostick and his family became members of the Alberta Social Credit League and his mother, Edith Gostcik was elected to the Alberta legislature in the 1935 provincial election that brought Social Credit to power making Aberhardt as Premier of Alberta.
Split into simpler sentences: Gostick and his family became members of the Alberta Social Credit League. His mother, Edith Gostcik, was elected to the Legislative Assembly of Alberta in the 1935 provincial election that brought Social Credit to power making Aberhardt as Premier of Alberta.