Complex sentence: Mulcair was born in 1954 at the Ottawa Civic Hospital, the son of Jeanne (née Hurtubise), a school teacher, and Harry Donnelly Mulcair, who worked in insurance.
Split into simpler sentences: Mulcair was born in 1954 at the Ottawa Civic Hospital. He is the son of Jeanne (née Hurtubise), a school teacher, and Harry Donnelly Mulcair, who worked in insurance.