Cary was admitted to the bar in 1837, practicing law out of his in office in Cincinnati. He was elected a judge in the
Ohio State Supreme Court, but decided to pass on the position, continuing to practice law. He stopped working in law in 1845 to become a farmer and also to devote himself to temperance and
anti-slavery groups. He gave lectures and wrote books on
prohibition and
slavery matters. He was a delegate to the
Republican National Convention in
1864 supporting
Abraham Lincoln for a second term. Cary served as paymaster general for the State of Ohio under Governors Bartley and Bebb. He then became Collector of Internal Revenue for
Ohio's first district in 1865. == U.S. House of Representatives ==