Complex sentence: Their sons, Henry Stanislas Harwood and Robert William Harwood, became members of the Canadian House of Commons, and another, Antoine Chartier de Lotbinière Harwood, represented Vaudreuil in the Legislative Assembly of the Province of Canada in 1863 and then for Quebec in 1867.
Split into simpler sentences: Their sons, Henry Stanislas Harwood and Robert William Harwood, became members of the Canadian House of Commons. Another son, Antoine Chartier de Lotbinière Harwood, represented Vaudreuil in the Legislative Assembly of the Province of Canada in 1863 and then for Quebec in 1867.