William Howard Taft who was then Governor-General, appointed Smith to be an associate justice of the Supreme Court of the Philippines, where he served from June 17, 1901 to January, 1903. Smith later worked under the Taft Commission to devise a legal code for the Philippines. From 1906 to 1909 he was Governor-General; the new Philippine Assembly was convened during this time, in 1907. He was close friends with Frank W. Higgins.
A brief history of the United States Court of Customs and Patent Appeals by Giles S. Rich. Washington, D.C. : Published by authorization of Committee on the Bicentennial of Independence and the Constitution of the Judicial Conference of the United States : U.S. G.P.O., 1980.