This file is a work of a sailor or employee of the
U.S. Navy, taken or made as part of that person's official duties. As a
work of the
U.S. federal government, it is in the public domain in the United States.
{{Information |Description=Photograph of
David Sinton Ingalls, US Navy World War I fighter ace. |Source=Clipped from United States Navy Historical Center image NH 49249. Downloaded from http://www.history.navy.mil/photos/image
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