Columbia subject headings:
Harvard subject headings:
Frontier and pioneer life--Kansas--Osborne County.
Princeton subject headings:
Frontier and pioneer life--Kansas--Osborne County.
Osborne County (Kan.)--Biography.
Osborne County (Kan.)--Social life and customs.
Pioneers--Kansas--Osborne County--Correspondence.
Ruede, Howard, 1854-1925--Correspondence.