Andrew Johnson, President of the United States of America, to all and singular to whom these presents shall come, greeting : whereas a supplemental article to the treaty between the United States of America and the Pottawatomie Nation of Indians, of the fifteenth of November, one thousand eight hundred and sixty-one, was made and concluded at the city of Washington, in the District of Columbia, on the twenty-ninth day of March, in the year of our Lord one thousand eight hundred and sixty-six, by and between Dennis N. Cooley, commissioner on the part of the United States, and J.N. Bourassa, U.F. Navane, and B.N. Bertrand, Business Committee, on the part of said nation of Indians ...