Question: Joyce Carman Barkhouse, was a children's writer, of which nationality, best known for writing historical fiction, and is the aunt of Margaret Atwood, a Canadian poet, novelist, literary critic, essayist, inventor, and environmental activist?
Sentence (from "Margaret Atwood"): Margaret Eleanor Atwood, {'1': ", '2': ", '3': ", '4': "} (born November 18, 1939) is a Canadian poet, novelist, literary critic, essayist, inventor, and environmental activist.
Relevant evidence: Yes