Question: What nationality is Rockwood Hoar's father?
Sentence (from "George Frisbie Hoar"): George Frisbie Hoar (August 29, 1826 – September 30, 1904), a prominent American politician and United States Senator from Massachusetts from 1877 to 1904, belonged to an extended family that became politically prominent in 18th- and 19th-century New England.
Relevant evidence: Yes