Kahn was soon to be acknowledged as the ablest reorganizer of railroads in the United States. He applied himself to the Baltimore and Ohio Railroad, the Missouri Pacific Railroad, the Wabash Railroad, the Chicago and Eastern Illinois Railroad, the Texas and Pacific Railroad, and other systems. More than once, his prompt and vigorous action averted an imminent financial panic. A notable instance was his rescuing from collapse the Pearson-Farquhar syndicate when it found itself in deep water in an attempt to combine several existing lines of railroad into a South American transcontinental system.