REMOVE

1. Canals
2. Guide Book
3. New York

WHAT

1. Book Map (3)
2. Railroad (3)
3. Rivers (2)

WHERE

1. Hudson River (2)
2. Canada (1)
3. Chesapeake and Delaware C … (1)
4. Erie Canal (N.Y.) (1)

WHO

1. Tanner, Henry S. (3)
2. Brose, W. (2)
3. Chapin, W. (2)
4. J. & J. Harper (2)
5. Knight, J. (2)

WHEN

1. 1830 (2)
2. 1840 (2)
3. 1845 (1)