Tuesday, October 20, 2026

The Trent Affair: The Civil War Mix-up That Almost Brought England Into The War

 

The San Jacinto stopping the Trent at sea. John Slidell (right), James Mason (left)

Early in the war, the Confederate States pinned their hopes on attracting military and financial assistance from the European powers, but securing their help was not that easy. Jefferson Davis was one of the biggest stumbling blocks to recognition. Rather than develop a consistent foreign policy aligned with the needs of his potential allies, Davis believed the commissioners should stress the importance of cotton to the prosperity of the British economy. He also wanted the commissioners to make a play for sympathy and emphasize the moral issues the South was fighting for (while also downplaying slavery). Vice President Alexander Stephens favored exchanging cotton for arms and ammunition.

 

R. B. Rhett, a South Carolina politician, suggested a more balanced approach. He wanted to form a treaty of a commercial alliance with England and France that created offensive and defensive obligations. He favored imposing a ten percent tariff on countries that did not accept the treaty, and he wanted to give the commissioners liberal powers to form alliances.

 

In the end, Jefferson Davis won out. He sent a three-person delegation comprising William Lowndes Yancey, Ambrose Dudley Mann, and Pierre Rost to Europe in February 1861.

 

In London, the commissioners had an informal meeting with Lord John Russell, the British Foreign Secretary, in early May before word of the attack on Fort Sumter reached England. Not long after that, Mr. Gregory introduced a motion in the House of Commons to recognize the Confederate States as an independent nation. The house did not act on it.


On May 13, Queen Victoria issued a declaration of neutrality that recognized the Confederate States as belligerents. The decision allowed Confederate ships to dock in neutral ports but did not supply them with arms or equipment. The decision disappointed the Confederates. They had hoped to receive official recognition by the European powers along with money and munitions to help carry on the war.

 

The government of the United States was just as unhappy with Great Britain’s declaration of neutrality. They viewed the Confederate States as rebellious subjects with no international standing. The American minister to England, Charles Francis Adams, protested the British declaration saying it recognized the Confederate States as a “maritime power before they had ever exhibited a single privateer upon the ocean.” He said it was too soon to recognize them as a power. Later, when he spoke with Lord Palmerston, Adams told him the life of the rebellion hung on its recognition by England and France. Without that, the South should “perish in ninety days.”


John Slidell


In October 1861, Jefferson Davis decided that a single team of commissioners for Europe was not working. So instead, he dispatched separate emissaries to England, France, Spain, and Brussels. For this task, he chose experienced political leaders. James Murray Mason was assigned to London and John Slidell to Paris. In addition, he chose Pierre Rost as an emissary to Spain and Dudley Mann to represent the Confederate States in Brussels.

 

Rost and Mann were already in Europe and quickly assumed their new posts. For Mason and Slidell, the trip was more complicated. They had to run the Union blockade in Charleston Harbor at the start of their journey.

 

They sailed out of Charleston just before midnight on October 11 on the steamer Theodora. “The night was pitch dark, and about midnight, a light rain began falling, which rendered the chances of being detected by the blockades extremely slim.” As the ship passed Fort Sumter, the crew extinguished all the lights on the Theodora.

 

The Theodora reached Nassau in the Bahamas on the night of October 14. The commissioners had initially planned to book passage on a steamer out of Nassau but decided not to risk it when they discovered it made a brief stop in New York. So instead, they made a detour to Cuba. From there, they intended to sail to Saint Thomas and then to Southampton, England, on the West India Mail Steamship Trent.

 

What’s surprising is the commissioners did not keep their travel plans under wraps? They snuck through the Union blockade at Charleston, but once they reached Cuba, they announced their plans in public.

 

On October 29, the Yorkville Enquirer ran an article that said, “the steamer Theodora, which ran the blockade with Messrs. Mason and Slidell, Confederate Commissioners to Europe, has arrived at Fernandina, Florida, having landed them safely at Cardenas, Cuba.” Later in the article, they bragged, “this has all been done in the face of Mr. Lincoln’s blockade.”

 

On its second day out of Havana, the USS San Jacinto approached the Trent in the narrowest part of the Bahama Channel near the Paredon Grand Light House. When the San Jacinto spotted the Trent, they fired a shot over its bow and displayed the American colors. All their ports were open, the guns run out, and the crew at their battle stations.


As the San Jacinto moved closer, it fired a shell from a large caliber swivel gun that burst in the water near the Trent. An officer on the San Jacinto said, “A shot from the pivot gun was fired across her bow; she hoisted English colors,” but showed no disposition to slow down. “We hoisted the star-spangled banner, and as soon as she was close upon us, fired a shot across her bow, which brought her to.”


James Mason

Captain Moir of the Trent demanded to know what the San Jacinto meant by firing on her. Captain Charles Wilkes of the San Jacinto said he wanted to board the ship. So a boat filled with thirty heavily armed men was lowered from the side of the San Jacinto.


When he boarded the Trent, Lieutenant Fairfax told Captain Moir he had information the Confederate Commissioners were on board and should be surrendered to him. When the Trent resisted, two more boats were dropped over the side of the San Jacinto and surrounded the ship.

 

Lieutenant Fairfax forcibly removed Mason and Slidell and their secretaries from the Trent. However, Mason’s wife and daughter refused to leave the Trent and continued their voyage to England.

 

After Captain Wilkes took his prisoners, he sailed to Boston rather than a Federal port in New York or Hampton Roads. When the San Jacinto arrived at Boston, everyone went wild over the news of the capture of the commissioners. “The Bostonians completely lost their heads and made Captain Wilkes lose his,” wrote Admiral David Dixon Porter.

 

Porter did not understand all the fuss and excitement. The commissioners were just men and not “important” men, so the South could easily replace them. Capturing them did nothing to help the war effort. And yet, everywhere in America, politicians, people, and the press viewed the capture as a significant victory. Initially, Congress commended Wilkes for the capture and made provisions to strike a gold medal honoring him.

 

Wiser heads might have prevailed if any other commander had taken the prisoners off the Trent. However, Captain Charles Wilkes was different. He was a genuine American hero. He joined the navy in 1818 at thirteen, had commanded the American Exploring Expedition in the 1830s, and had later written a five-volume history of the journey. The British were so impressed with his accomplishments  that the Geographical Society of London awarded him a gold medal for his services.

 

Calmer heads were not as sure taking the commissioners was such a good thing. Five days after the incident, William Seward instructed Charles Francis Adams that Captain Wilkes had acted on his own accord. However, the government was open to discussing the matter once England’s position was known. Earl Russell expressed the same feeling. He wrote Lord Lyons saying the government was “willing to believe that the naval officer who committed the act was not acting in compliance with any authority from his government.” He was sure the American government knew Britain could not allow the abuse.

 

Abraham Lincoln was a realist. While he appreciated what Wilkes had done, he understood he might need to release Mason and Slidell to keep the peace with England. But he feared, “the traitors will prove to be white elephants…if Great Britain shall now protest the act and demand their release, we must give them up, apologize for the act of a violation of our own doctrines.”


Captain Charles Wilkes

Charles Francis Adams said the Confederate Commissioners were taken off the Trent on November 8. News of the capture reached Washington on November 16 and London on November 27. Adams said the time frame was crucial to understanding the crisis. The “United States went crazy” over the news of the capture. When the “storm of approval” reached London, they were incensed.


On November 30, Earl Russel denounced the seizure of the Confederate Commissioners as “an act of violence which was an affront to the British flag and a violation of international law.” The only solution was to return Mason, Slidell, McFarland, and Eustis to the British.

 

Lord Russell wrote Lord Lyons, the British minister at Washington, to say he thought the United States would come around and deliver the commissioners to him. But privately, he told him, “If it was not done in seven days, Lyons was to leave Washington with all members of the legation and to repair immediately to London.”

 

The alternative was war with England.

 

While negotiations were going on, England was preparing for war with the United States. When news of the seizure of the commissioners reached London, the British had geared up for a fight. They started raising troops and getting ready to move arms, munitions, and men to bases in Canada.

 

The cause of the dispute seems inconsequential now, but at the time, it came close to sparking an international incident.

 

The issue that ignited the incident was not the capture of the Confederate Commissioners at sea; it was that Captain Wilkes had not followed the proper procedure for taking contraband and prizes. The Washington Evening Star reported, “That though Capt. Wilkes might lawfully have subjected the Trent to the judgment of an Admiralty Court; he had no right to retain any person on board of her, as he did restrain the rebel commissioners.” The way they phrased it, the arrest had “questionable authority in law.”

 

Admiral David Dixon Porter said, “it was very plain to able jurists that the position we had on account of the capture of Mason and Slidell was not a defensible one, and the first act of the government should have been to disavow the act of Captain Wilkes and order him to proceed to the nearest British port and land the party he arrested.”

 

Porter said it would have been different if the Trent had “sailed from any Southern port” or had taken any passengers from any vessels at sea. Even then, Wilkes should have taken the Trent to a Court of Admiralty to decide the case.

 

He did not do that. Instead, “Captain Wilkes instituted a Court of Admiralty on the high seas.”

 

The New York Herald described the incident as an “error of procedure…which does not affect the merits of the case.” In their opinion, whatever the decision, “the guilt of the Trent remains.”

 

General Winfield Scott agreed. He said, “it is very clear that our government had sufficient grounds for presuming itself in the right…The pretense that we ought to have taken the Trent into port and had her condemned by a prize court in order to justify our seizure of her passengers furnished a very narrow basis on which to fix a controversy between two great nations. Stated an offense would have been less if it had been greater. The wrong done to the British would have been mitigated if, instead of seizing the four rebels, we had seized the ship, detained all her passengers for weeks, and confiscated her cargo.”

 

Instead, General Scott turned the situation around. He said Wilkes had taken the path of least harm towards Great Britain. But in his opinion, “an event so mutually disastrous as a war between England and America cannot occur without some other and graver provocation than has yet been given by either nation.”

 

Whatever Scott thought about the Trent Affair, Charles Francis Adams was involved in the negotiations in London from the beginning. He said: “There is no question that Great Britain was in dead earnest in its demand for immediate reparation and acted accordingly. The arsenals were busy; all available forces were mobilized, and troops embarked for Canada.”

 

On December 26, the United States agreed to give up the commissioners.


Abraham Lincoln based his decision on the reason America fought the War of 1812, “that foreign nations had no right to search the vessels of another power to obtain possession of their subjects.”

 

He told himself he could get back at England later for the slight. Lincoln said it was a “pretty bitter pill to swallow, but I contented myself with believing that England’s triumph in the matter would be short-lived, and after ending our war successfully, we should be so powerful that we could call England to account for all the embarrassments she had inflicted upon us.”

 

William Seward delivered the American response on December 26. It did not accept blame but argued Wilkes had a right to stop the Trent because Mason and Slidell were contraband of war.” However, in this case, Wilkes did not follow proper procedures. He should have seized the ship and taken it to a Federal port to have it condemned before a Court of Admiralty.

 

Privately, Seward wrote, “in yielding to the demands of England, we not only secure her neutrality in the matter of this Southern rebellion beyond the reach of quibble or pretext but in maintaining our old grounds we secure the sympathy and goodwill of France,” and all the other Continental nations. The Confederate States gave up any opportunity to secure foreign help or intervention during the Civil War by yielding to England. It was not a bad tradeoff.

 

Admiral Porter thought along the same lines as Abraham Lincoln. “We made a good fight on paper, though we could not make it on the water.” He did not think we could beat England in 1861. But three years later, with our naval build-up for the civil war, defeating the British would have been a sure thing.


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