Castle Thunder (prison)

"Also see castle thunder for the famous sound effect used in many films."

Castle Thunder, located in Richmond, Virginia, was a former tobacco warehouse located on Tobacco Row, converted into a prison used by the Confederacy to house civilian prisoners, including captured Union spies, political prisoners and those charged with treason during the American Civil War. A large number of its inmates were sentenced to death. Even though the inmates were sometimes allowed boxes of medicine and other supplies, the prison guards had a reputation for brutality.

Among its many notable occupants was Union officer William Jackson Palmer (1836-1909). In 1862, he was captured while scouting before the Battle of Antietam within Confederate lines in civilian clothes while gathering information for General George McClellan. When questioned he gave his name as W.J. Peters, and claimed to be a mine owner on an inspection trip. While the Confederates did not know he was a spy, his circumstances were suspicious and he was detained and sent to Richmond, Virginia for detention at Castle Thunder. He was set free in a prisoner exchange and rejoined his Regiment in February, 1863.

After the Union forces captured Richmond, they used the prison for similar purposes. Among those known to have been incarcerated there in this later period was Mollie Bean, a woman who had served for two years in the 47th North Carolina and was twice wounded in action. She had pretended to be man simply in order to join the Confederate Army, but her Union captors suspected her of being a spy.