Tuhia he haere tonu mo tenei pene - I pootihia a Lockwood hei Democrat ki te 43rd United States Congress, a i mahi mai i te Maehe 4, 1877, ki te Maehe 3, 1879. He mema ia ki te Huihuinga o 1880
me te 1884 Democratic National Conventions. I te tau 1884, ka tohua e ia a Grover Cleveland, tana hoa tata, hei Perehitini. I tohua a Lockwood hei Kaitohutohu a te United States mo te Rohe ki te Raki o New York e te Perehitini Cleveland, a i mahi ia mai i te 1886 ki te 1889.