Mezue ahịrịokwu na-esonụ: A kwalitere Greer ka ọ bụrụ onye isi ndị ọchịagha ma jee ozi na United States Navy site na 1862 ruo 1863, wee tinyezie ya na Rear Admiral David Dixon Porter's Mississippi Squadron. Mgbe ọ na-achịkwa ụgbọ mmiri ndị a na-eji ígwè arụ, o sonyere n'agha Vicksburg na mwakpo nke
Nnukwu Osimiri Gulf nakwa njem Union Red River nke dara ada na mbido afọ 1864.