Bertrand Nicholas Oliver Walker, who published his poems under his Wyandot name, Hen-toh, was born in 1870. A member of the Oklahoma band of the Big Turtle Clan, he attended the Seneca Indian School and the public school in Seneca, Missouri. Walker took on an independent study for four years under the tutelage of a college professor local to his community.
Walker is the author of the poetry collection Yon-Doo-Shah-We-Ah (Nubbins) (Harlow, 1924) and Tales of the Bark Lodges (Harlow, 1919), a book of Wyandot animal stories. He worked as an educator for many hears, and was the chief clerk of the Quapaw Agency in Miami, Oklahoma, at the time of his death in 1927.