Balmoral, December 1921: the IRA enter a trap

Estimated reading time: 20 minutes

In some police documents and newspaper reports, the surname McGuinne was spelled M’Guinne or Maguinne, following the spelling conventions of the time; here, these have been corrected to McGuinne, the version used by the men concerned.

The bait is dangled

Near the end of November 1921, a British soldier with an Irish name, Trumpeter Joseph Slattery of the Royal Artillery Mounted Rifles (RAMR), went for a drink in a Belfast city centre pub owned by a well-known nationalist family:

The RAMR were billeted at the Balmoral Showgrounds, off the Malone Road in south Belfast, in what was – and still is – one of the most genteel suburbs of the city. The men arranged to meet at Balmoral at 9pm the following evening, Saturday 17 December, when Slattery would hand over the weapons and ammunition.

In September 1913, the Balmoral Showgrounds were used to stage a review of the Ulster Volunteer Force by Edward Carson (Illustrated London News, 4 October 1913)

On his return to the camp that night, Slattery informed his commanding officer of the plan. Later challenged as to why he did not report it sooner, he said:

The trap is discovered

However, the IRA already knew that the British military were planning to ensnare the IRA party. The Intelligence Officer of the Belfast Brigade, David McGuinness, had agents in the General Post Office who could listen in on phone calls between the various British Army barracks in the city; he recalled:

“This was a telephone conversation held between the officer who was acting as Duty Officer that night at Victoria Barracks and his corresponding number in the War Hospital which unfolded with gusto the story of a plan to trap the ‘Shinners,’ as they were referred to, at Balmoral. The trap was to be laid on the following Saturday when it was expected to capture the most effective and dangerous IRA men operating Belfast.

McGuinness’ and Slattery’s statements are at odds on one point: the soldier said he first reported the plan to his superior on the Friday night, but McGuinness said the British were already aware of the plan the night before. Both statements cannot be true. The most likely explanation of the apparent contradiction is that McGuinness’ statement was given to the Bureau of Military History in 1950, so his recollection of the days of the week involved may have been faulty.

David McGuinness, IRA Intelligence Officer, learned that the British had set a trap for the IRA (photo courtesy Jimmy McDermott)

The order was disregarded. If it had been followed, the men would not have had time to get from the Lower Falls to Balmoral in time for the 9pm rendezvous. That was the moment at which the plan began to unravel completely.

The prey

Six members of the IRA made their way to Balmoral on the Saturday night. Hugh Harper, who had made the initial contact with Trumpeter Slattery in McEntee’s pub, was not among them. In fact, it is doubtful whether Harper was even in the IRA.

The trap is sprung

The IRA travelled to the Balmoral military camp via the Malone Road (© National Museums of Northern Ireland

According to a newspaper report, shortly before 9pm on Saturday 17 December,

Captain Orr Ewing of the RAMR later told a court that he had placed soldiers at three locations around the perimeter of the camp; he joined one of the outposts at 8:30pm:

When the shooting began, the four men around the ladder ran off, two running across open ground towards Balmoral Avenue, pursued by Ewing and his men:

Hamill and McLarnon were captured here, Hamill having been wounded in the leg, McLarnon in the head and chest.

Major John Wallace was commanding troops at Gate D of the camp which led to Balmoral Avenue when he heard a shot:

A Daimler delivery lorry, similar to the one driven by Joseph McGuinne

In the lorry, troops found a 6” Webley revolver on the driver’s seat and an automatic revolver on the floor behind the front seat. In a follow-up search of the area in daylight the next morning, Captain Ewing found a 4” Webley revolver, recently fired, and a 6” Smith & Weston revolver near where the ladder had been standing.

District Inspector (DI) Francis Lewis of the RIC barracks in Donegall Pass was called to Balmoral with a party of policemen. They took custody of Tumelty and Watters, who they brought to the central police station in Chichester Street – the others were taken for medical treatment in the military hospital at Victoria Barracks in north Belfast.

A Webley 4” Mark IV revolver

The trial

Crumlin Road courthouse (© National Museums of Northern Ireland)

The various military witnesses provided their evidence and although the prisoners had cross-examined them rather half-heartedly and ineffectually when their original depositions were made at the end of January, they did not do so in court.

The jury was not convinced by his flimsy arguments. All seven men were found guilty on the first charge and while Harper was acquitted on the second charge, the others were found guilty.

The sequel

Portobello Barracks was handed over to the National Army on 17 May 1922. Far from taking the sea air to recuperate from his wounds, Leo McGuinne became the Barrack Adjutant

The internees had varying experiences of incarceration.

Harper adopted an approach that was the polar opposite. He went before the Advisory Committee as early as October 1922, still maintaining that he had been set up by Trumpeter Slattery:

Larne Internment Camp: Hugh Harper wrote to the governor, offering to become an informer

The SS Argenta: George Hamill was probably one of the few internees to request a transfer back to the ship for the sake of his health

In mid-July 1924, his father wrote to him:

His father’s prediction proved perceptive – McGuinne was released unconditionally two weeks later.

Military Service Pensions files have been released in respect of five of the six IRA men captured on the night of the raid, Watters being the exception. The files show that, as with their periods of internment, the men fared very differently afterwards.

Leo McGuinne was demobilised from the National Army in December 1923. His application under the 1924 Military Service Pensions Act was rejected, most likely on the basis of a scathing “reference” provided by Seán O’Neill, who had been the O/C of the Belfast Brigade at the time of the Balmoral raid:

Summary and conclusions

However, it was a disaster that could easily have been avoided. The IRA leadership had intelligence which clearly showed that the operation had been compromised and that the men were driving into a trap.

Balmoral also provides an interesting insight into the intelligence capabilities of the protagonists. On one hand, the IRA were able to eavesdrop on British military phone calls. On the other, the RIC drew some laughably erroneous conclusions from documents they captured on the raiders and retrospectively tried to suggest that they had known about the IRA’s misgivings all along.

It is also telling that DI Lewis and his men were only called to Balmoral after the six IRA raiders had been captured by the military. The fact that the RIC were not alerted by the RAMR in advance of the raid and were not waiting with them to spring the trap suggests that, at the very least, the troops lacked confidence in the police.

The news of the foiled arms raid was over-shadowed by reports on the continuing sectarian violence in Belfast and especially by the ongoing Dáil debate over the Treaty. This probably suited the IRA – for them, it was an embarrassing fiasco, best forgotten about as soon as possible; unlike the Raglan Street ambush the previous July, there would be no ballads written about Balmoral.

However, the RUC had longer memories. Before the IRA raiders’ six-month prison sentences had even expired, the police were already taking steps to ensure that the men who had driven into the British Army trap would remain in captivity for an even longer period.

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