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In early October 1861, United States warships entered the Head of Passes, where the Mississippi River’s multiple entrances converge into a single channel. The occupation simplified the blockade by enabling a handful of ships to seal off the “father of waters” and cut off supplies to New Orleans. Confederate Capt. George N. Hollins recognized the danger, assembled a makeshift flotilla, and launched a surprise attack on the enemy vessels. Neil P. Chatelain’s Ironclad Ambush: Confederates Strike Lincoln's Mississippi River Blockade at the Head of Passes, October 12, 1861, is the first book-length treatment of this pivotal naval action.
The Battle of the Head of Passes on October 12 marked the Civil War’s first major fleet engagement. The Southern privateer ironclad ram Manassas rammed USS Richmond, and as the Federals retreated toward the Gulf, two blockaders ran aground and crews abandoned ship as Confederate gunboats closed in. The clash represented the Confederacy’s first major naval victory, the first use of an ironclad in North American waters, and the first direct challenge to Abraham Lincoln’s blockade. The battle quickly became mired in confusion and conflicting accounts. Outdated technologies—sailing ships, fire rafts, and rams—collided with modern innovations like screw-propelled steamers, telegraph communications, and ironclads. The fog of war led officers and enlisted men to misinterpret orders, as many historians have misinterpreted the facts. Some commanders excelled and earned promotions; others faltered, appeared drunk, or suffered breakdowns.
Lingering questions persist: Why did U.S. forces initially enter the Head of Passes? Why did Hollins seek to counter them? Which ships were involved? Why did two blockading crews abandon their vessels mid-battle? Why did the Confederates withdraw yet claim victory? And why does this seemingly minor, often-overlooked engagement matter?
Award-winning historian Neil P. Chatelain’s Ironclad Ambush scrutinizes every previous account of the battle, firsthand archival material, and period newspapers. Drawing on voices from all sides—including ship captains, junior officers, enlisted sailors, lighthouse keepers, and civilians across southeastern Louisiana—he unravels the complexities and contradictions of early Civil War coastal and riverine naval operations. Everyone with an interest in naval warfare will find this book invaluable.
ADVANCE PRAISE
“Neil Chatelain’s study on the 1861 naval engagement at the Head of Passes leading into the Mississippi River is a remarkable achievement. Just when you think every important Civil War story has been told and retold, Neil comes along with another well-written and thoroughly researched account of a fascinating naval battle that most readers will never have even heard of. Ironclad Ambush is an interesting and rewarding journey through a subject that has never received the full attention it deserves.”
— Edward T. Cotham, Jr., author of The Southern Journey of a Civil War Marine
“Neil P. Chatelain’s new book provides the first detailed, full-length account of the action at the Head of Passes on the Mississippi River in October 1861, a battle previously relegated to the margins of Civil War naval history. He not only corrects many oft-repeated factual inaccuracies about the engagement but reframes the battle as central to understanding the early naval dimensions of the war, the evolution of the Union blockade, and the Confederacy’s response to protecting New Orleans, its most important port city. Loaded with relevant images and excellent maps, Ironclad Ambush challenges conventional wisdom about this overlooked engagement and uncovers an important story that changes how we understand the early naval history of the Civil War.”
— Samantha Cavell, Ph.D., Associate Professor of Military History, Southeastern Louisiana University
“Ironclad Ambush is a much-needed volume on the Civil War’s first major naval action. The narrative is well-written and fast-paced, the maps are excellent, and the images include the familiar and the obscure. The study builds on the author’s excellent Defending the Arteries of Rebellion and cements Chatelain’s growing reputation as one of the foremost scholars of the Civil War’s naval history.”
— Sean Michael Chick, author of Grant’s Left Hook: The Bermuda Hundred Campaign, May 5–June 7, 1864, and Dreams of Victory: General P. G. T. Beauregard in the Civil War
