Whakaotihia te rerenga e whai ake nei: I mahi ia hei Mayor o Plainfield, New Jersey mai i te 1912 ki te 1913. Ko ia te tumuaki o te komiti Democratic a Union County i te tau 1914 me te Komihana o Washington Rock Park o New Jersey mai i te 1915-1921. I mahi a Stewart hei mema o te Poari Mātauranga o te Kawanatanga o New Jersey mai i te 1919-1921 me te New Jersey State Highway Commission mai i te 1923-1929. He karere ia ki ngā Huihuinga ā-Motu o te Rōpū Manapori i
1920 me te 1928.