Capt. William Ocker & General Menoher - Public domain portrait photograph

Photograph shows US Army Air Service aviator, William C. Ocker (1880-1942) flying a De Havilland DH-4B airplane with Chief of the Air Service, Major General Charles T. Menoher (1862-1930) in the cockpit. (Source: Flickr Commons project, 2018)
Title from data provided by the Bain News Service on the negative.
Forms part of: George Grantham Bain Collection (Library of Congress).
General information about the George Grantham Bain Collection is available at http://hdl.loc.gov/loc.pnp/pp.ggbain