I enclose a copy of the letter which the war minister wrote to me respecting MacMahon.
T. Bernadotte.[671]
Bernadotte's missive, like a shell, bursts with crushing force. The fact that McMahon's movements in '98 are continually reported to the British Government would show, however, that it was not until after the collapse of the rebellion, and want stared him in the face, that he sold his information. When hunger sent its spasm remorse lost its pang.
In the report of the Secret Committee of the House of Lords, issued in 1798, it appears, from the sworn testimony of John Hughes of Belfast, that
in June 1797 he attended a meeting at Randalstown, which consisted of Teeling, Lowry, Robert Moore, and Colonel James Plunkett. He attended said meeting by the direction of Lowry and Teeling to hear the report of the Colonels of the County of Antrim. The Report was brought by Dunne, accompanied by the Rev. Arthur MacMahon of Holywood. The first resolution was that it would be imprudent to act at that time without foreign aid, but that if the County of Down would act, a part of the Antrim Colonels, who could bring out nine or ten thousand men, would act with Down. The meeting broke up in consequence of the division amongst the Antrim Colonels. The Rev. Arthur MacMahon told the meeting that he had been sent by the Colonels of the County of Down to state to the Colonels of the County of Antrim, who had met at Park Gate that day, that they (the Colonels of Down) were willing to rise, and that he had delivered such the message of the Down Colonels to the Antrim Colonels. MacMahon was then a member of the Ulster Provincial Committee, and he told him that he had been one of the seven Colonels of the County of Down who had been selected and appointed leaders for said county; and he also told him that he (MacMahon) was a member of the National Executive.
MacMahon was informed on his road home (as he heard) that he would be taken; and he, Robert Rollo Read, Hastings Mason, once an officer in the Downshire Militia, and John Magennis, took boat at Bangor and got over to Scotland, and afterwards MacMahon got to France, where he still is.—Pp. [28]-9.
The report and appendix of the Secret Committee is known to have been edited by Alexander Knox, whom Lord Macaulay afterwards described as 'a remarkable man.' Mr. Knox was the private secretary of Lord Castlereagh; and, in compiling the report for the Government, he disclosed as much of McMahon's proceedings as was convenient for their purpose. The Government well knew that McMahon had engaged deeply in treason between the period of his taking boat at Bangor and getting to France. The second volume of Lord Castlereagh's Correspondence opens with the following secret letter. Quigley, or O'Coigly, will be remembered as the unfortunate priest who was hanged at Maidstone in May 1798:—
'McMahon, member of the executive committee, a Presbyterian parson from the County of Down, forced to emigrate in June last, came over to London, where he met with Quigley, who was likewise obliged to leave Ireland. They started together in London, imitating the Patriots in the mode of forming societies after the plan of the United Irish. They had heard of the expedition at the Texel being intended for Ireland, and it was agreed on that an insurrection should be attempted in London, as soon as the landing was effected in Ireland. Colonel Despard was to be the leading person, and the King and Council were to be put to death, &c. Their force was estimated at 40,000, ready to turn out. McMahon, hearing he was traced to London, resolved on going for France, and took Quigley as his interpreter; he got a subscription made to pay Quigley's expenses, and collected twenty-five guineas, fifteen of which were given by a Mr. Bell, of the City.
'McMahon and Quigley went over to Cuxhaven, thence directly to Holland, were on board the fleet, and, when the expedition went off, proceeded to Paris. They there found Lewins, but could get no satisfactory answers from him relative to his communications with the French Government. A quarrel was the consequence, and Father Quigley was despatched privately by McMahon to London, to get some one sent over to represent the Patriots of both nations, and to replace Lewins.'[672]
Seaton Reid, D.D., the able historian of the Presbyterian Church, says that in 1789 McMahon was ordained to the pastoral charge of Kilrea, and in 1794 became minister of Holywood. He is described as a man of daring character, and considerable literary attainments. Dr. Reid's History has been continued by Dr. Killen, an ecclesiastical historian of rank, who found McMahon's subsequent career involved in great mystery. 'On the Continent,' writes Dr. Killen, 'he embraced the military profession, and it is said—with what truth I know not—that he became distinguished as General Mack.' Most notices of Mack, the Austrian general, say that he died in obscurity, and at a date unknown. It is almost a pity to disturb the romance with which Dr. Killen has invested this subject,—but 'truth is stranger than fiction.' An inquiry into the life of General Mack is fatal to the suggestion of the Presbyterian historian.[673]