 His grandsons, Antoine Chartier de Lotbinière Harwood and Henri-Gustave Joly de Lotbinière, both later became members of the legislative assembly for Canada East and then Quebec.Joly de Lotbinière also served as Prime Minister of Quebec and Lieutenant Governor of British Columbia.Two more grandsons, Robert Harwood and Henry Stanislas Harwood were Members of Parliament for Vaudreuil.