One of the pioneers in the Underground Movement in Philadelphia and New York; Mr. Hopper is supposed to have resorted to underground methods as early as 1787.

The New York Public Library states no known U.S. copyright for this item. Pinax admits it as US-PD only because the work predates 1900, making public domain near-certain worldwide; status outside the U.S. is not asserted and reuse elsewhere is the user's responsibility. Credit: From The New York Public Library.