Riddick was nominated by President
Franklin D. Roosevelt on December 1, 1941, to the
United States Court of Appeals for the Eighth Circuit, to a new seat created by 54 Stat. 219. He was confirmed by the
United States Senate on December 16, 1941, and received his commission on December 19, 1941. Riddick served in that capacity until his death on July 31, 1953. ==References==