The documentary prompts that guided the preparation of this article specifically call for this kind of honesty about what is known and what is gap. The escape was real and well-documented at its broad outlines. Its specific moment-by-moment mechanics are reconstructed from later accounts and are best understood as historical narrative rather than verified contemporary record.
## The Keokuk and What Iron Vessels Meant
The April 7, 1863 assault on Fort Sumter in which Smalls piloted the USS Keokuk deserves context, because the Keokuk was not just any vessel and the assault was not an incidental engagement.
The Keokuk was one of the Union’s early ironclad vessels, built in New York and designed with two fixed gun towers and an unusual laminated armor construction that proved, in the event, significantly less resistant to Confederate fire than its designers had hoped. The April 7 assault on Fort Sumter was a major naval operation involving nine ironclads — some of the most advanced naval vessels the United States had ever built. Du Pont had serious reservations about the feasibility of the attack but carried it out under pressure from the Navy Department and political figures in Washington.
The assault failed. The Confederate fortifications at Sumter and the other harbor installations directed concentrated fire on the attacking vessels. The Keokuk took approximately ninety hits in less than thirty minutes of combat. Several shots penetrated or damaged the armor near the waterline. The ship managed to withdraw but was too badly damaged to be saved. It sank the following morning, April 8, 1863, in shallow water near Morris Island.