Original sentence: He was a Justice of the Peace (J.He was a notable Liverpool entrepreneur and politician and served as mayor of the city in 1842.Robertson married Mary Ellen Jones, daughter of a notable local banker on 28 January 1836 in London
Edited sentence: As a politician he served as mayor of the city in 1842.He married Mary Ellen Jones, daughter of a notable local banker on 28 January 1836 in London.He was a notable Liverpool entrepreneur with business interests in the West Indies and India in relation to sugar plantations.He was also a Justice of the Peace (J.Robertson, along with his siblings was bought up in Liverpool and studied at Eton School