“Nigger in Uniform! Nigger in Uniform!” screamed the agitated Baltimore crowd of Southern sympathizers. They had been angry enough when Pennsylvania militiamen had detrained at Bolton Street station and began marching down Eutaw Street toward Camden Station on April 18, 1861, but when they saw Nicholas Biddle, an African American in uniform who was treated as an equal by his white comrades, their blood lust only increased and their calls grew louder. “Poor Nick had to take it” as the mob closed in like “wild wolves,” Captain James Wren, Biddle's commander, later recorded.