Columbia subject headings:
O'Connor, John C.--Art collections--Exhibitions.
Pennsylvania--In art--Exhibitions.
Prints, American--Exhibitions.
Prints--United States--19th century--Exhibitions.
Tavern Restaurant (State College, Pa.)--Exhibitions.
Yeager, Ralph M.--Art collections--Exhibitions.
Harvard subject headings:
O'Connor, John C--Art collections--Exhibitions.
Pennsylvania in art--Exhibitions.
Prints, American--19th century--Exhibitions.
Prints, American--Exhibitions.
Prints--19th century--United States--Exhibitions.
Tavern Restaurant (State College, Pa.)--Exhibitions.
Tavern Restaurant (State Park, Pa.)--Exhibitions.
Yeager, Ralph M--Art collections--Exhibitions.
Princeton subject headings:
O'Connor, John C.--Art collections--Exhibitions.
Pennsylvania--In art--Exhibitions.
Prints, American--Exhibitions.
Prints--19th century--Exhibitions.
Tavern Restaurant (State College, Pa.)--Exhibitions.
Yeager, Ralph M.--Art collections--Exhibitions.