At the age of fifteen, he began a career in the field of
telegraphy, later working as a manager in a telegraph office in
Cleveland, Ohio. Afterwards, he owned steamboats on
Cayuga Lake from 1862 to 1863. From 1864 to 1869, he was a cashier and vice president of the First National Bank of Ithaca. He was a director of the
Western Union Telegraph Company, which had been co-founded by his father, from 1868 to 1876, and was its vice president from 1870 to 1876. He was
town supervisor of Ithaca in 1864–5. From 1858 until 1866, he was chairman of the
Tompkins County Republican committee, and in 1866-7 was a member of the Republican state committee. He was one of the first commissioners for the erection of the new state capitol at
Albany from 1868 until 1871. He was the Republican candidate for
Lieutenant Governor of New York in
1868, but was defeated by the Democrat,
Allen C. Beach. He was appointed by President
Ulysses S. Grant as Surveyor of the
Port of New York. machine From 1870 to 1878, he was chairman of the state Republican Party. He resigned his position as Surveyor of the Port of New York to become a member of the
New York State Assembly (New York Co., 11th D.) in
1873, and was elected
Speaker, one of the very few times a first-term member was chosen. He was influential at the
1876 Republican National Convention which nominated
Rutherford B. Hayes. In January 1877, he was appointed naval officer of the Port of New York by Grant. Hayes, upon becoming president, directed the
Treasury Department to notify Cornell that he must resign from the state and national Republican committees as a condition of remaining a naval officer. Regarding this as an invasion of his civil and political rights, Cornell declined to obey the mandate, whereupon a successor was nominated, but was rejected by the Senate. After the adjournment of the Senate in July 1878, Hayes suspended both the collector (
Chester A. Arthur) and the naval officer, and their successors were finally confirmed. At the subsequent elections, Cornell was chosen
Governor of New York and Arthur became
Vice President of the United States. Cornell was governor from 1880 to 1882, elected in
1879. His administration was noted for economy in public expenditures, and his vetoes of appropriation bills were beyond all precedent. Upon his recommendation, a state board of health and the state railroad commission were created, women were made eligible for school officers, a reformatory for women established, and the usury laws were modified. The resignation of the New York senators from the U. S. Senate in 1881 provoked a bitter contest for the succession, by which the Republican Party was divided into hostile factions, the
Stalwarts and the
Half Breeds. Cornell's opponents prevented his re-nomination for governor.
Later life During his latter years, Cornell lived in
New York City, where he had a mansion built in the 1870s at 616
Fifth Avenue on the west side of the avenue between
49th and
50th Streets, and wrote a biography of his father in 1884. ==Personal life==