Photograph of William E. Boeing (right) and an unidentified man in front of steam engine during a logging operation, likely in Washington, circa 1903-1915.
Photograph of unidentified men mounted on three of William E. Boeing's racehorses, circa 1940s. The horses are identified in the inscription as Pony, Slide Rule, and Devil's Thumb.Inscription on verso: "Pony, Slide Rule, Devil's Thumb."
Photograph of the Aeronautical Chamber of Commerce delegation gathered in front of the White House, Washington, D.C., circa 1929. First row, from left to right: C. H. Colvin, Lester D. Gardner, Thomas F. Hamilton, William E. Boeing, Jerome C.…