Mezue ahịrịokwu na-esonụ: Agha Obodo America malitere n'April 1861, n'afọ ahụkwa Howell kọrọ na steam frigate, nke e kenyere na North Atlantic Blockading Squadron iji sonye na mgbochi Union nke Confederate States of America. Mgbe ọ nọ n'ụgbọ "Minnesota" ọ hụrụ ihe na-eme na
Agha nke Hatteras Inlet Batteries na Outer Banks nke North Carolina na 28-29 August 1861.