Most of these photos come from the Prints and Photos collections in the Library of Congress.

Undated photo in the G.G. Bain collection

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Just before the US entered the First World War Stinson toured Japan and China. On 12/16/1916 she was the first woman pilot to perform an airshow over Tokyo. This is another photo in LC's G.G. Bain collection.

In Tokyo.

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Same. The race car driver is identified as Dario Resta.

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This was taken shortly before she left on the trip to Japan and China.

In Tokyo. Shows Hantaro Nagaoka and his daughter. Stinson was only 5 ft. tall.

Same. With Marquis Ōkuma Shigenobu.

The Stinson Sisters: Katherine And Marjorie (SI Air & Space Museum photo)
Links:
Katherine Stinson on Centennial of Flight
Katherine Stinson on womenaviators.org
the Women Who Dared the Skies on century-of-flight.net
Katherine Stinson on findagrave.com
Katherine Stinson, 1893-1977 on Ralph Cooper's pages
Katherine Stinson on Wikipedia
Katherine Stinson Otero, 1891-1977 on earlyaviators.com
A page about the Bain Photos in LC.