Ontario, [5], [20], [31], [86], [159]-[177]

Opportunities, special, [22], [169], [190]

Oregon, Treaty of, [231]

Orleans, Isle of, [1]

Ottawa, [37]-[41], [168]

Pacific Ocean, [18], [20]

Panama Canal, [74], [235]

Peace River District, [212], [235]

Pioneers, [67], [152], [161], [174];

British, [3];