claim: Alan Shepard was Chief of the Astronaut Office from November 1963 to July 1969.
evidence: USS Corypheus -LRB- 1862 -RRB- was a schooner captured by the Union Navy during the American Civil War .. schooner. schooner. Union Navy. Union Navy. American Civil War. American Civil War. Corypheus was used by the Union Navy primarily as a gunboat to patrol navigable waterways of the Confederacy in order to prevent the South from trading with other countries .. Union Navy. Union Navy. gunboat. gunboat. Confederacy. Confederate States of America. She carried a 30-pounder rifled gun , powerful enough to stop a blockade runner , and a howitzer for riverside bombardment .