this would be very early for native records. the records at NARA were from the war department and largely were in the time period 1800-1900, made up of natives that were living on-reservation who were accepting rations.
natives that were living off-reservation were either enumerated in federal census records or, if slaves, were usually not enumerated at all until the 1850s. in the 1850 and 1860 census, slaves were enumerated under their master’s name with a very brief description.
there might be information in henry clay’s estate papers or letters. a state historical society or state archives might be able to help you here. county clerks may have some court papers, such as wills or guardianship papers.
the owner of a family tree that included these people might know source documents, so you should correspond with them.
journal articles may cite documents that would help you. state historical societies, state archives could help. also check with your local public library/interlibrary loan program.
you are looking at a very early time period for records. natives had an oral tradition and native languages became written languages in the late 1800s. as a result, tribes do not have early records.
suzanne hamlet shatto