Since my account of the traitorous plot was written, as also of the attempt at assassination, I have received from my friend Dr. W.B.  STEVENS, of Savannah, the following extracts from letters of General Oglethorpe.  As they state some particulars explanatory and supplementary of the narrative which I had given, I place them here.  And this I do the rather because DR. HEWATT, (Vol.  II. p. 70,) as also Major McCALL, (Vol.  I. p. 124,) in the same words, and some others, incorporate the treachery at St. Simons, and the assault at St. Andrews into a connected narrative, as one occurrence; whereas it is very evident that the circumstances detailed were distinct; one originating among the troops which sailed in the Hector and Blandford, in July 1738, from England, and the other in the two companies drawn from the garrison at Gibraltar, which came in the Whittaker in the preceding month of May.

In reference to the first, General Oglethorpe thus wrote in a letter to the trustees, dated, “on board the Blandford at Plymouth, July 3d, 1738.”

“We have discovered that one of our soldiers has been in the Spanish service, and that he hath stroved to seduce several men to desert with him to them, on their arrival in Georgia.  He designed also to murder the officers, or such persons as could have money, and carry off the plunder.  Two of the gang have confessed, and accused him; but we cannot discover the rest.  The fellow has plenty of money, and he said he was to have sixty or a hundred crowns, according to the number of men he carried.  He is yet very obstinate, refusing to give any account of his correspondents.  We shall not try him till we come to Georgia, because we hope we shall make more discoveries.”

“They left Plymouth on the 5th of July, and arrived about the 16th of September, at Frederica.”

On the 8th of October, 1738, occurs the following passage in a letter from Frederica, to his Grace the Duke of Newcastle.

“We have discovered some men who listed themselves as spies.  We took upon one of them his furlough from Berwick’s regiment in the Irish troops.  They strove to persuade some of our men to betray a post to the Spaniards; who, instead of complying, discovered their intentions.  I have ordered a general Court Martial, for the trying of them, who have not yet made their report.  One of them owns himself a Roman Catholic, and denies the King having any authority over him.”

“I conceive,” says Dr. Stevens, “that these two letters refer to one and the same thing, viz.:  that there were spies, which came over with the troops who arrived in September; that they designed to betray the English posts; that they were to murder the officers; and defeat the object for which the regiment was sent to Georgia.  But this plot was crushed by the fact of its being discovered, the ring-leaders seized, and a Court Martial ordered.”