All 12 vice admiral designations were in use by March 1942, when a headquarters reorganization called for two more vice admirals to be vice chief of naval operations and chief of staff to COMINCH. Frederick J. Horne and Russell Willson were nominated to be temporary vice admirals, under a 1941 statute that authorized an unlimited number of appointments in all grades for temporary service during a national emergency, with temporary flag officers needing confirmation by the Senate. The statute technically created temporary grades only up to rear admiral, but the Senate confirmed Horne and Willson as vice admirals anyway, and continued to confirm temporary admirals and vice admirals when nominated. Dozens of temporary vice admirals were appointed during World War II, either to serve in a specified job or simply for the duration of the national emergency.
