“Minority National Groups in the United States up to 1860, and Their Influence on Negroes, Their Attitude Toward Race Prejudice”

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.