The Seneca Man Who Wrote The Surrender Terms At Appomattox – Then Became America’s First Native Commissioner Of Indian Affairs
But he had already resigned.
And the country he had served — in which he had written the surrender terms at Appomattox, in which he had been appointed Commissioner of Indian Affairs — did not grant him citizenship until a special act of Congress did so in 1871.
The Native Americans he had been governing as Commissioner had no such path.
Most of them would not achieve citizenship for another half century.
None of this diminishes what Parker accomplished.