REMOVE

1. Covers
2. Pocket Map
3. Tanner, Henry S.
4. 1846

WHAT

1. Canals (1)
2. Railroad (1)
3. Roads (1)

WHERE

1. Mexico (2)
2. Boston (Mass.) (1)
3. California (1)
4. Central America (1)
5. Guatemala (1)

WHO

1. C.S. Williams (2)
2. H.S. Tanner (2)
3. Williams, C. S. (1)

WHEN

1. Mexican U.S. War (1)