Jacob Dolson Cox, an American lawyer and soldier, born in Montreal, Canada, Oct. 27, 1828. His parents, who had been temporarily in Canada, were residents of New York city, where he studied law for a while. He then went to Ohio, studied at Oberlin college, and was admitted to the bar in 1852. In 1859 he was elected state senator. In April, 1861, he was made brigadier general of the state militia in Ohio, and placed in command of a camp of instruction. In May he was appointed brigadier general of U. S. volunteers, and commanded in the valley of the Kanawha, from which he drove out the confederates under Gen. Henry A. Wise. In August, 1862, he was assigned to the army of Virginia, under Gen. Pope. After the death of Gen. Reno he commanded the 9th army corps at the battles of South Mountain and Antietam (Sept. 14-17, 1862), and in April, 1863, was assigned to the command of the district of Ohio. He served during the Atlanta campaign of 1864, and was made major general of volunteers in December of that year.

In March, 1865, he fought the battle of Kingston, N". C, and then united his force with that of Gen. Sherman. In 1866 he was elected governor of Ohio. In 1869 he was appointed secretary of the interior by President Grant, but resigned in November, 1870, on account of disagreement with some measures of the administration.