Evan L. Schwab  served as law clerk to a US Supreme Court Justice that was nominated by which president?
William O. Douglas William Orville Douglas (October 16, 1898January 19, 1980) was an American jurist and politician who served as an Associate Justice of the Supreme Court of the United States. Nominated by President Franklin D. Roosevelt, Douglas was confirmed at the age of 40, one of the youngest justices appointed to the court. His term, lasting 36 years and 211 days (1939–75), is the longest in the history of the Supreme Court. In 1975 "Time" magazine called Douglas "the most doctrinaire and committed civil libertarian ever to sit on the court".
James Henry Wright James Henry Wright (c. August 13, 1838 January 17, 1905) was an American jurist and politician. Following his service in the Confederate States Army during the American Civil War, Wright became an attorney in Missouri where he served as mayor of Carrollton and a member of the Missouri House of Representatives. Wright was appointed Chief Justice of the Arizona Territorial Supreme Court by President Grover Cleveland. He served for three years before being removed from the bench by President Benjamin Harrison.