James Ford Rhodes (1848–1927). History of the Civil War, 1861–1865. 1917.

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  in the fall of Louisville; Bragg feared the serious crippling of his army. Both were short of supplies. Finally when reduced to three days’ rations, Bragg turned aside from the direct road north leaving the way open for Buell, who moved rapidly to Louisville. Thus the Kentucky campaign of the Confederates was a failure even as was their Maryland campaign and mainly for the same reason: that in each case the denizens of the invaded territory were for the most part favorable to the Union. “We must abandon the garden spot of Kentucky to its cupidity,” wrote Bragg. “The love of ease and fear of pecuniary loss are the fruitful sources of this evil.”  4   Buell, having insured the safety of Louisville, started in pursuit of the enemy; they met in a severe battle at Perryville, both generals claiming the victory. Next day Bragg fell back and soon afterwards took up his march southward. Buell did not make a vigorous pursuit. He failed to overtake the Confederates and bring them to battle but he drove them out of Kentucky.  5   Western Radicals opposed Buell as their Eastern fellow-laborers opposed McClellan and they had at their head Oliver P. Morton of Indiana, who was the ablest and most energetic of the war governors of the Western States. The governors of the Northern States were important factors in the early conduct of the war because the national Administration was at first dependent on the State machinery for furnishing troops, and, to some extent, their equipment. Owing to the geographical position of his State and the bitterness of the Democratic opposition within its borders, Morton had more obstacles to surmount than any other governor; he threw himself into the contest with a vigor and pertinacity that could not be excelled. Wishing to see operative in military affairs the same force which he put