Complex sentence: In 1898, Cross entered politics, and was elected as Conservative MLA for Calgary East, and in 1899 he married Helen Rothney Macleod, the daughter of Colonel James F. Macleod, the lawman who gave Calgary its name.
Split into simpler sentences: In 1898, Cross entered politics, and was elected as Conservative Member of the Legislative Assembly (MLA) for Calgary East. In 1899 he married Helen Rothney Macleod, the daughter of Colonel James F. Macleod, the lawman who gave Calgary its name.