The real story is bonkers. And her story is even more bonkers, by many degrees: The 1920 campaign biography of Herbert Hoover written by the daughter of Laura Ingalls Wilder (and editor of her Little House on the Prarie books), Rose Wilder Lane, goes truly bonkers in its account of Herbert Hoover and the Kaiping mine. In the biography, Rose Wilder Lane (1920), The Making of Herbert Hoover (New York: The Century Company) <https://archive.org/details/cu31924030938983>, she starts by writing of Qing Mines Director-General Chang Yenmao as some sort of wuxia figure, and goes from there:
She was VERY conservative and a great mythologizer of the "independent, self-made man" in the American Frontier.
But the wuxia is marvelous!