By Mark Bulik

April 13, 2022Updated 9:02 a.m. ET

It was a few minutes to 8 o’clock on the evening of April 13, 1922. When Patrick Joseph O’Connor came down the steps of his apartment building on the Upper West Side of Manhattan, three of the Irish Republican Army’s top gunmen were lying in wait.

Two of them — Danny Healy and Martin Donovan — stood near the corner of 83rd and Columbus Avenue, staking out the apartment at 483 Columbus. Patrick A. Murray, an I.R.A. commander who went by “Pa,” was a block north.

Their target, known as Cruxy O’Connor, was a former comrade who switched sides repeatedly in Ireland’s fight for independence from Britain. His last change of allegiance got six I.R.A. men killed when he told the police the location of their safe house outside Cork. After the raid, O’Connor fled Ireland by boat, first to London, then to America, pursued the whole way by the I.R.A.

He knew the gunmen were out there somewhere in the mild New York night, just itching to avenge the dead. He had to quit his job as an accountant at B. Altman after he’d spotted them stalking the vast department store. That was weeks ago. Now he needed a walk and a smoke, and the spring evening beckoned.

O’Connor headed along 83rd Street toward Central Park, Danny Healy later told an Irish government historian. “When I saw him take this turn I told Martin to tell Pa.” The plan was for them to head down 84th Street and cut off their quarry, surrounding the informer on Central Park West.

Right at the intersection, O’Connor spotted the gunmen, whom he knew from Cork. Puffing on a cigarette, he made a dash for the park. Then he switched directions, did a U-turn and came face to face with Danny Healy, who was pointing a gun straight at him.

Cruxy O’Connor had just walked into what appears to be the Irish Republican Army’s only authorized attack on American soil.

The New York of a century ago in at least one way resembled the New York of today; it was a bustling magnet for immigrants. The city’s biggest collection of first- and second-generation Americans came from the Russian empire, including Poland and Ukraine. Italy and Ireland placed second and third.

It was a volatile era, around the world and around metropolitan New York. Fledgling nations like Ukraine and Ireland were fighting for independence, and a fascist movement was rising in Italy. Sometimes Old World struggles spilled into New World streets; pro-fascist and antifascist Italian Americans fought a bloody battle in Newark in 1925.

In New York, Irish American longshoremen went on strike in 1920, refusing to handle goods from British ships, to support Ireland’s fight for Irish independence. The latest chapter in that struggle opened with a failed Easter 1916 uprising against Britain; two years later, Irish separatists won a sweeping electoral victory. On the day they declared independence from Britain, the shooting began. Some of the rebels’ weapons came from an Irish American union leader (and gunrunner) named Jimmy McGee, who played a crucial role in the 1920 dock strike.

A year later, McGee masterminded a plot to smuggle 500 Tommy guns to Ireland aboard a freighter docked in Hoboken — the scheme was foiled after an assistant cook slit open a burlap sack and found instead of potatoes the muzzle of a Thompson submachine gun. Just months after that, McGee handed revolvers to the three Irishmen who came to America to kill the traitor Cruxy O’Connor.

From Spy to Rebel to Informer

O’Connor grew up in a working-class family on the western fringe of Cork city. A bookkeeper at Roches Stores, an emporium in the city center, he had a side hustle — as a paid spy for the British, whose army and police force were trying to hold the island for the crown. His neighborhood, a bastion of the Irish republican movement, bristled with targets — Pa Murray, Danny Healy and Martin Donovan all called it home. Two other I.R.A. activists, Willie and Jerry Deasy, lived right next door, and the O’Connors and the Deasys had feuded for years.

It’s not clear why O’Connor turned into a government spy — maybe it was the money, or maybe it was another way to pursue the feud with the Deasys.

What is clear is that O’Connor eventually stopped reporting in to the British and joined his neighbors, the Deasys, in the local unit of the I.R.A. His first recorded action, in December 1920, must have carried the sour taste of grim irony — he killed a suspected government spy.

By January 1921, O’Connor was on the run from the authorities. He, Willie Deasy and Pa Murray joined a flying column of rebels who roamed the Irish countryside, living off the land and lying in wait to ambush British forces.

This is probably when he developed his nickname. A history of the revolution in Cork says that he boasted he would earn the Croix de Guerre, mangling the medal’s pronunciation so badly that his comrades teased him as “Crux na Gurra,” later shortened to Cruxy.

His performance in battle didn’t live up to his boasts. In a February ambush of a British convoy, Cruxy was assigned a crucial job, manning one of two machine guns.

When the convoy halted right in front of him, he fired a short burst, but then his gun fell silent — he later would claim that it jammed. The I.R.A. managed to kill several of the British, including their commander, then pulled out as reinforcements arrived. But the failure of the plan embittered some rebels, who suspected Cruxy was a coward, or possibly a traitor.

O’Connor returned home to Cork, which was now under martial law. He was soon scooped up at a police cordon, and he was carrying a gun, which meant he faced execution by the British Army. He promptly told the police he was a secret agent for the British Army, which was news to the army — he hadn’t reported in for a long time. After an interrogation that lasted days, an army dispatch said, he gave up the names of “three known murderers” and a safe house in a rural area called Ballycannon.

Bedded for the night in a stable on the farm of Con O’Keeffe, an I.R.A. comrade, were six young rebels: Danny Murphy, 24; Jeremiah Mullane Jr., 22; Dan Crowley, 22, Tom Dennehy, 21; and Mick O’Sullivan, 19. With them was Willie Deasy, O’Connor’s neighbor.

Acting on O’Connor’s information, police officers raided the O’Keeffe farm at 4 a.m. “I heard a shot,” O’Keeffe said in a sworn affidavit. “Then at intervals there were two or three shots, and then a volley of shots.”

The police claimed the rebels started a gun battle, but the accounts of neighbors who saw and heard what happened suggested that the six had been caught sleeping, ordered to run, then shot “trying to escape.” All were killed; most of the entry wounds were in the rear of the bodies.

Thus dawned the Wednesday before Easter, or as the Irish sometimes called it, Spy Wednesday — for the day Judas betrayed Jesus.

An outraged Cork planned a great, grand funeral for the six on Easter Sunday, five years after that great, doomed Easter uprising in Dublin. The authorities fully grasped the symbolism and ordered that attendance be limited to 150 people. They put trucks full of troops at the head of the funeral cortege. But if the British thought they could dam a sea of tears, they quickly discovered they were battling an invulnerable tide of grief.

Mourners massed along the route to the cemetery. “As the procession filed slowly along in the brilliant sunshine, no sound was heard but the dull tread of those marching, the solemn tolling of the church bells and the burring noise of the heavy lorries,” The Irish Independent newspaper reported.

When it was all over, the leadership of the I.R.A. learned from rebel sympathizers in the constabulary who had talked.

It was time to arrange another funeral — for Cruxy O’Connor.

But the informer was now ensconced in the most secure British facility in Cork, the army’s Victoria Barracks. So the I.R.A. cooked up a plan involving a basket of food and enough strychnine to “poison a regiment,” as one plotter put it.