From the Richmond Enquirer, 8/12/1862
CASTLE THUNDER. - Assistant Provost Marshal for the Eastern District, will remove his quarters tomorrow, to Greanor's Tobacco Factory, on Cary, near 18th Street. "Castle Godwin" immediately subside into oblivion. The new prison, we learn, is to be christened "Castle Thunder," a name indicative of Olympian vengeance upon offenders against her laws, and one which, in point of sound, is as good as any other that could be chosen, Castle Grizzly not excepted.