Ely Samuel Parker, born Hasanoanda, later known as Donehogawa, was an engineer, U.S. Army officer, aide to General Ulysses Grant, and Commissioner of Indian Affairs, in charge of the government's relations with Native Americans. He was bilingual, speaking both Seneca and English, and became friends with Lewis Henry Morgan, who became a student of the Iroquois in Upstate New York. Parker earned an engineering degree in college and worked on the Erie Canal, and other projects.

Nathaniel Green Taylor was an American lawyer, farmer, and politician from Tennessee. He was U.S. Representative from Tennessee from 1854 to 1855, and again from 1866 to 1867, and Commissioner of Indian Affairs from 1867 to 1869.