As regards the second spy named in Bernadotte's letter to Berthier, histories of the rebellion may be vainly searched for any mention of Durnin; nor is it surprising, when we know, as we now do, that this man had three or four aliases. Nay, more--he is sometimes described in the Government reports merely by an initial! Thus, Wickham encloses to Castlereagh a letter from Crawford, British minister at Hamburg, in which he says, 'one D----, alias C----, who murdered Pentland at Drogheda--a man much esteemed by Mr. Beresford, is now here.'[681] The usually exhaustive index to the 'Castlereagh Correspondence' includes no name resembling Durnin. However, it turns up in a letter of Wickham to Castlereagh, dated November 23, 1798, announcing that a vessel named the 'Morgan Rattler' had just arrived at Hamburg from Dublin with some rebel fugitives, and bearing letters and papers from Coll, a colonel in the rebel army at Wexford, and 'Duff, alias Campbell, but whose real name,' he adds, 'is _Dornan_.'[682] Lower down in the letter, Wickham adds that 'Campbell, alias Duff, but whose real name is Dornan, is said to have been concerned in the murder of a person of the name of Pentland, or Portland, near Drogheda.'[683] Here at last one gets upon a long-lost track--a track, it is to be feared, of a double-dyed villain. Dalton's 'History of Drogheda' mentions (ii. 370) that in 1796, shortly after the arrival of the French fleet in Bantry Bay, 'Mr. Pentland, surveyor of excise in Drogheda, was inhumanly and wilfully murdered.' Officers of excise usually kept a sharp watch on the coast; and hence, probably, Durnin deemed it well to 'remove' him. Why Durnin figured under the name of Duff at Drogheda may have been because it was endeared to the people by historic tradition. D'Alton--the historian of Drogheda--often mentions the Duffs, and how for faith and fatherland they suffered attainder in 1691. I cannot find that Durnin attained any influence in the councils of the United Irishmen; but McMahon must have been a person of culture and prepossessing manners to succeed in exciting the sympathy of a stoical soldier of the Revolution, and who, moreover, had reason to doubt his fidelity. The name Arthur McMahon is found in the Fugitive Bill of 1798. But this circumstance affords no proof that he was not then a spy; for Turner also figures in the Fugitive Bill, and was afterwards subjected to the mock penalty of imprisonment. The Banishment Act includes the name 'John Dorney.' Durnin and Dorney are convertible names. A gardener named Durnin, or Dorney (for the peasantry hail him by both names), has been employed in the author's family for many years.