Columbia subject headings:
Harvard subject headings:
Biographies
Fugitive slaves--Ontario--Owen Sound--Biography.
Henson, Jim, approximately 1798-
Owen Sound (Ont.)--Biography.
Slavery--United States--History--19th century
Underground Railroad--Canada.
Princeton subject headings:
African Americans--Biography.
Black people--Ontario--Owen Sound--Biography.
Fugitive slaves--United States--Biography.
Henson, Jim, approximately 1798-
Owen Sound (Ont.)--Biography.
Slavery--United States--History--19th century.
Slaves--Maryland--Biography.