Since he was always interested in railroads, Flint served as the superintendent of the CCC&I from 1859 to 1878. Flint became a member of the Cleveland board of schools in 1860 and was elected mayor in 1861. Flint, a Republican because of the Civil War, later realigned his views to that of a War Democrat;  he supported the North's cause during the Civil War.
Since he had always been fascinated by railroads, Flint served as the superintendent of the CCC&I from 1859 to 1878. Flint became a member of the Cleveland school board in 1860 and was elected mayor in 1861. Flint, a Republican due to the Civil War, later shifted his views to those of a War Democrat; he supported the North's cause during the Civil War.