REMOVE

1. Pennsylvania
2. Johnston, Alexander Keith, 1 …

WHAT

1. Atlas Map (1)
2. National Atlas (1)

WHERE

1. Boston (Mass.) (1)
2. Massachusetts (1)
3. Philadelphia (Pa.) (1)

WHO

1. Edward Stanford (1)
2. Johnston, W. & A.K. (1)
3. Rogers, Henry Darwin (1)

WHEN

1. 1857 (1)