Delaware Nation
The Delaware Nation, or Lenape, also known as Lenni Lenape, signed the first-ever "Indian treaty" with the United States of America in 1778, and are the oldest known nation in the Eastern US.
The Delaware Nation, or Lenape, also known as Lenni Lenape, signed the first-ever "Indian treaty" with the United States of America in 1778, and are the oldest known nation in the Eastern US.
While the Delaware Indians were the first tribe to sign a treaty with the United States, they have just been successful in regaining federal recognition in 2002 as a separate tribe, now given the title of Delaware Tribe of Indians.

The Eastern Shawnee Tribe of Oklahoma are descended from the mixed Seneca-Shawnee band which left Lewistown, Ohio and came to the Indian Territory in 1832. Recognized as a separate tribe in 1867, they organized as the Eastern Shawnee Tribe of Oklahoma during the 1930s.
The Ho-Chunk Nation of Wisconsin, formerly known as the Wisconsin Winnebago Tribe, is one of two federally recognized tribes of Ho-Chunk people.

The ancestral homelands of the Shawnees are in the northeastern United States. During the 19th century, the tribe was removed by the U.S. Government to what is now the state of Kansas.