Born in Boston, Massachusetts, Harris attended the common schools and Phillips Exeter Academy, Exeter, New Hampshire. He graduated from Harvard in 1877. He studied law. He was admitted to the bar in 1879 and practiced in Boston and Brockton, Massachusetts from 1879 to 1902. He served as member of the State house of representatives in 1889. He served as district attorney for the southeastern district of Massachusetts 1891-1901. He served as associate judge of the superior court of Massachusetts from June 4, 1902, to March 1, 1911.
Harris was elected as a Republican to the Sixty-second Congress (March 4, 1911 – March 3, 1913). He was not a candidate for renomination in 1912. He resumed the practice of law. He was appointed United States district attorney for the Massachusetts district by President Harding in 1921 and served until removed by President Coolidge in December 1924. He died in Brockton, Massachusetts, June 13, 1926. He was interred in Central Cemetery, East Bridgewater, Massachusetts.
- United States Congress. "Robert O. Harris (id: H000251)". Biographical Directory of the United States Congress.
This article incorporates public domain material from the Biographical Directory of the United States Congress website http://bioguide.congress.gov.
|U.S. House of Representatives|
| Member of the U.S. House of Representatives
from Massachusetts's 14th congressional district
March 4, 1911 - March 3, 1913