None of these nations deemed it impossible that American settlers in the Mississippi Valley might be won to accept another flag than that of the United States. Gardoqui had the effrontery in 1787 to suggest to Madison that the Kentuckians would make good Spanish subjects. France enlisted the support of frontiersmen led by George Rogers Clark for her attempted conquest of Louisiana in 1793. England tried to win support among the western settlers. Indeed, when we recall that George Rogers Clark accepted a commission as Major General from France in 1793 and again in 1798; that Wilkinson, afterwards commander-in-chief of the American army, secretly asked Spanish citizenship and promised renunciation of his American allegiance; that Governor Sevier of Franklin, afterwards Senator from Tennessee and its first Governor as a State, Robertson the founder of Cumberland, and Blount, Governor of the Southwest Territory and afterwards Senator from Tennessee, were all willing to accept the rule of another nation sooner than see the navigation of the Mississippi yielded by the American government we can easily believe that it lay within the realm of possibility that another allegiance might have been accepted by the frontiersmen themselves. We may well trust Rufus Putnam, whose federalism and devotion to his country had been proved and whose work in founding New England's settlement at Marietta is well known, when he wrote in 1790 in answer to Fisher Ames's question whether the Mississippi Valley could be retained in the Union: "Should Congress give up her claim to the navigation of the Mississippi or cede it to the Spaniards, I believe the people in the Western quarter would separate themselves from the United States very soon. Such a measure, I have no doubt, would excite so much rage and dissatisfaction that the people would sooner put themselves under the despotic government of Spain than remain the indented servants of Congress." He added that if Congress did not afford due protection also to these western settlers they might turn to England or Spain.[187:1]