Who is the author born in 1817 that is associated with a pond from which Frederic Tudor sold ice?
Walden Pond:  The reservation was designated a National Historic Landmark in 1962 for its association with the writer Henry David Thoreau (1817–62), whose two years living in a cabin on its shore provided the foundation for his most famous work, "Walden; or, Life in the Woods".
i don't know