Skip to contentRobert W. Olsen, Jr., at the grave of John Wesley Powell in Arlington Cemetery. In 1969, Olsen was Historian for the National Park Service at Whitman Mission National Historic Site, Walla Walla, Washington | Collections | The Huntington
Robert W. Olsen, Jr., at the grave of John Wesley Powell in Arlington Cemetery. In 1969, Olsen was Historian for the National Park Service at Whitman Mission National Historic Site, Walla Walla, Washington
