REMOVE

1. World Atlas
2. View
3. Thomson, John
4. 1817

WHAT

1. Atlas Map (2)
2. Data Visualization (1)
3. Mountains; Rivers (1)

WHERE

1. United States (2)
2. Hudson River (N.Y. and N. … (1)
3. New York (1)
4. Niagara Falls (N.Y. and O … (1)
5. Ontario (1)

WHO

1. Baldwin, Cradock, and Joy (3)
2. Hewitt, N. R. (3)
3. John Cumming (3)
4. John Thomson (3)