Biddle's "Men Dressed in Squars Clothes", 1804-10
The Original Journals of the Lewis and Clark Expeditions ... contains diary notes by Nicholas Biddle which report of the Mandan Indians that on Saturday, December 22, 1804,
a number of Squars & men Dressed in Squars Clothes Came with Corn to Sell to the men for little things....
Notes by Biddle, dating to April 1810, among the letters and documents of the Lewis and Clark expedition, report:
Among Minitarees if a boy shows any symptoms of effeminacy or girlish inclinations he is put among the girls, dressed in their way, brought up with them, & sometimes married to men. They submit as women to all the duties of a wife. I have seen them-the French call them Birdashes. 
Jonathan Ned Katz, Gay American History: Lesbians and Gay Men in the U.S.A. (NY: Crowell, 1976) pg. 292.
- [Nicholas Biddle], Original Journals of the Lewis and Clark Expeditions, 18041806 ... ed. Reuben Gold Thwaites, 8 vols. (N.Y. Dodd. Mead. 1904-05), vol. I. p. 239.
- [Nicholas Biddle], Letters of the Lewis and Clark Expedition, with Related Documents, 1783-1854, ed. Donald Jackson (Urbana: University of Illinois, 1962), p. 531.