But soon strange, dark rumors, starting from Natchez, were sent flying over the route Burr had just traveled with such acclaim. They were set on foot by an American, one Stephen Minor, who was a paid spy of Spain.[810] Burr, it was said, was about to raise the standard of revolution in the Western and Southern States. Daniel Clark wished to advise Burr of these reports and of the origin of them, but did not know where to reach him. So he hastened to write Wilkinson that Burr might be informed of the Spanish canard: "Kentucky, Tennessee, the State of Ohio, ... with part of Georgia and Carolina, are to be bribed with the plunder of the Spanish countries west of us, to separate from the Union." And Clark added: "Amuse Mr. Burr with an account of it."[811]
Wilkinson himself had long contemplated the idea of dismembering the Nation; he had even sounded some of his officers upon that subject.[812] As we have seen, he had been the leader of the secession movement in Kentucky in 1796. But if Burr ever really considered, as a practical matter, the separation of the Western country from the Union, his intimate contact with the people of that region had driven such a scheme from his mind and had renewed and strengthened his long-cherished wish to invade Mexico. For throughout his travels he had heard loud demands for the expulsion of Spanish rule from America; but never, except perhaps at New Orleans, a hint of secession. And if, during his journey, Burr so much as intimated to anybody the dismemberment of the Republic, no evidence of it ever has been produced.[813]
Ignorant of the sinister reports now on their way behind him, Burr reached the little frontier town of St. Louis early in September and again conferred with Wilkinson, assuring him that the whole South and West were impatient to attack the Spaniards, and that in a short time an army could be raised to invade Mexico.[814] According to the story which the General told nearly two years afterward, Burr informed him that the South and West were ripe for secession, and that Wilkinson responded that Burr was sadly mistaken because "the Western people ... are bigoted to Jefferson and democracy."[815]
Whatever the truth of this may be, it is certain that the rumors put forth by his fellow Spanish agent had shaken Wilkinson's nerve for proceeding further with the enterprise which he himself had suggested to Burr. Also, as we shall see, the avaricious General had begun to doubt the financial wisdom of giving up his profitable connection with the Spanish Government. At all events, he there and then began to lay plans to desert his associate. Accordingly, he gave Burr a letter of introduction to William Henry Harrison, Governor of Indiana Territory, in which he urged Harrison to have Burr sent to Congress from Indiana, since upon this "perhaps ... the Union may much depend."[816]