Ebenezer Rockwood Hoar was born in Concord, Massachusetts, on February 21, 1816. He graduated from Harvard in 1835, studied law there and received his LL.B. degree in 1839. He was admitted to the bar in 1840. He was judge of the court of common pleas in Boston from 1849 to 1855, and associate justice of the State supreme court from 1859 to 1869. President Grant appointed Hoar Attorney General of the United States on March 5, 1869. He was a member of the Joint High Commission which framed the Treaty of Washington with Great Britain in 1873 through 1875. From December 1873 to March 1875, Hoar was a Representative in Congress. He died on January 31, 1895 in Concord.