Sultana Disaster (1865): Deadliest Shipwreck in US History

The Sultana disaster was the explosion and burning of the Mississippi steamboat Sultana in the early hours of 27 April 1865, a few miles north of Memphis, Tennessee. Carrying perhaps six times its legal capacity, most of them Union soldiers just freed from Confederate prison camps, the boat was destroyed when its boilers burst. An estimated 1,100–1,200 or more people died, making it the deadliest maritime disaster in United States history.

Background: prisoners going home

The American Civil War was ending. Robert E. Lee had surrendered at Appomattox on 9 April 1865, and the Union and Confederacy had resumed exchanging prisoners. Thousands of Union soldiers released from camps at Cahaba, Alabama, and the notorious Andersonville prison in Georgia were gathered at Camp Fisk, a parole camp near Vicksburg, Mississippi, to await transport north.

Many were weak from months of hunger and disease. The government paid private steamboats to carry them home, at a rate of $5 for each enlisted man and $10 for each officer, which gave captains a strong incentive to take as many as possible.

The Sultana was a wooden side-wheel steamboat built in Cincinnati in 1863 and used on the lower Mississippi. It was legally registered to carry 376 passengers besides its crew. Its captain and part-owner was J. Cass Mason.

Overloading at Vicksburg

The Sultana arrived at Vicksburg from New Orleans on 23 April 1865 with a leaking boiler. Rather than replace the damaged plates, which would have taken days, a mechanic fitted a patch so the boat could leave quickly.

Investigations afterwards found that Mason had an understanding with Lieutenant Colonel Reuben Hatch, the army’s chief quartermaster at Vicksburg, to steer a large number of prisoners onto the Sultana. Confusion among the officers responsible, Captain Frederic Speed and Captain George A. Williams, over how many men were being loaded allowed the boarding to continue even as other boats left nearly empty.

When the Sultana left Vicksburg on 24 April, it carried an estimated 2,100–2,500 people. Soldiers were packed onto every deck, and the upper decks sagged so badly that supports were added.

The explosion

The boat struggled upstream against the Mississippi, which was in spring flood and several miles wide in places. It stopped at Helena, Arkansas, where a photographer recorded its crowded decks, and reached Memphis on the evening of 26 April. After unloading cargo and taking on coal, it set out again around midnight.

At about 2 a.m. on 27 April, roughly seven miles above Memphis, three of the Sultana’s four boilers exploded. The blast tore through the centre of the boat, hurling people into the cold water and scalding many with steam. Fire then spread through the wooden superstructure, and the vessel burned to the waterline before sinking.

Most of those who died drowned, were killed by the explosion or burned. Survivors clung to debris, trees and dead animals in the flooded river; some were swept miles downstream. Boats from Memphis, including the steamer Bostona and Union naval vessels, pulled people from the water at dawn. Many rescued men later died of burns and exposure in Memphis hospitals.

Causes

The precise cause remains debated. Most historians point to a combination of factors:

• the hasty repair of the leaking boiler at Vicksburg;
• the gross overloading, which made the boat unstable;
• the design of its tubular boilers, which were vulnerable if water levels became uneven as a listing boat rolled;
• hard steaming upstream against a strong flood current.

In 1888 a man claimed that a Confederate agent had hidden a bomb disguised as coal on board. The claim surfaced long after the event, is not supported by contemporary evidence, and is not accepted by most historians.

The survivors’ ordeal

Survivor accounts, many collected in later decades by the survivors’ associations, give a vivid picture of the night. Men who had endured months of starvation in prison camps found themselves fighting for space on floating wreckage in cold, fast-moving water in the dark. Some who could not swim were pulled under by others clinging to them.

Those who reached flooded trees or the Arkansas bank waited for hours, often badly burned or scalded. Local residents in small boats and on rafts helped rescue some, and Union gunboats and steamers from Memphis picked up others as daylight came. Several hundred survivors were taken to military hospitals in Memphis, where a number later died.

Most of the soldiers came from regiments raised in Ohio, Indiana, Michigan, Kentucky, Tennessee and West Virginia. Their home towns learned of the disaster only gradually, and in many cases families never knew exactly how or where a son had died.

By the numbers

Aftermath and investigations

Several military inquiries examined the disaster. Captain Speed was court-martialled and convicted of neglect of duty in 1866, but the Judge Advocate General, Joseph Holt, overturned the verdict. Hatch, whose earlier career had been marked by charges of corruption, left the army and was never tried. Mason died in the disaster. In the end no one was held legally responsible.

The disaster received surprisingly little attention. It came less than two weeks after the assassination of Abraham Lincoln and on the day after his assassin, John Wilkes Booth, was killed, and newspapers were full of those stories. The nation had also grown used to enormous casualty lists during four years of war.

Lessons for river safety

Steamboat boiler explosions were common in the nineteenth century, and federal laws of 1838 and 1852 had already introduced inspections and limits on steam pressure. The Sultana showed that inspection and licensing meant little if overloading and hurried repairs were tolerated. The disaster added to pressure for stricter enforcement, although river travel remained dangerous for decades and railways gradually replaced steamboats for most passengers.

Legacy

Survivors formed associations in the North and held reunions for decades, campaigning to keep the memory of the disaster alive. Memorials stand in Memphis, in Knoxville, Tennessee, and in towns in Ohio and Michigan, and a Sultana Disaster Museum opened in Marion, Arkansas.

The Mississippi has since shifted its course, and the remains of the boat are believed to lie under farmland on the Arkansas side of the river. Investigators in 1982 reported finding charred timbers there.

The death toll is often compared with the sinking of the Titanic in 1912, which killed about 1,500 people. The Sultana killed fewer, but it remains the worst maritime loss of life in American waters.

Timeline

• 1863: Sultana built in Cincinnati, Ohio.
• 1865, 9 April: Lee surrenders at Appomattox; prisoner releases speed up.
• 1865, 21 April: Sultana leaves New Orleans heading upriver.
• 1865, 23 April: At Vicksburg a leaking boiler is patched.
• 1865, 24 April: Sultana departs Vicksburg carrying about 2,100–2,500 people.
• 1865, 26 April: Stops at Helena, Arkansas, and Memphis, Tennessee.
• 1865, 27 April: Boilers explode at about 2 a.m. north of Memphis; the boat burns and sinks.
• 1866: Captain Frederic Speed court-martialled; the conviction is later overturned.

Why it matters

The Sultana disaster cost more lives than any other American shipwreck and exposed how profit, haste and confused authority could endanger soldiers who had already survived war and imprisonment. It remains a sobering coda to the Civil War and a case study in the dangers of overloading and poor boiler maintenance.