These amazing images of Native Americans have been brought back to life through vivid colourisation.
The remarkable pictures show the group during the 1920s, with some of the leaders meeting with then American president, Calvin Coolidge, at the White House.
Other fascinating images show the native tribe mixing with the public, standing on top of the Lincoln Memorial holding the American flag high, and two Native American elders meeting with politicians at the Capitol Hill in 1936, the same year the Aborigines Act Amendment Act was legislated.
These incredible photographs were colourised by British colorization specialist, Royston Leonard, 54, from Cardiff, Wales.
In 1924, the Indian Citizenship Act was proposed by Representative Homer P. Snyder and signed by President Calvin Coolidge, meaning the indigenous peoples including the Native American tribe, also known as Native Indians, were granted full U.S. citizenship.