REMOVE

1. Roads
2. Canals
3. Evans
4. 1846

WHAT

1. Atlas Map (1)
2. State Atlas (1)

WHERE

1. Erie Canal (N.Y.) (1)
2. New York (1)

WHO

1. Mitchell, Samuel Augustus (1)
2. S.A. Mitchell (1)
3. Tanner, Henry S. (1)