In reference to Dawes, the case numbers refer to the "application" and any and all documents that went with that. It's been a while since I was in nara....but I remember that you could look at the individual indexes.....and also the applications themselves (microfilmed copies if my memory serves me). Sometimes there were also interviews...narratives. If you request the information by case number you should get all of any documentation referring to that application. If anyone else can give her further information on this please do. As far as tracing for genealogy sake, there are many ways to trace. I would start with the tribal affiliation. Then I would contact the tribe. Most that have websites online can give you info about how you can get more info. I would recommend that if you have a tribal affiliation...and a geographic area....you do a lot of research on your own. Start with history of that tribe. That should also be available on the website. Depending on the date of your information....you may be looking in the original locations of the tribes...before the removal....or other locations. Also, I had success in connecting with others here....on the genealogy websites, such as ancestry.com, kindred connections, etc., by posting on their message boards...with name, location and what information you are seeking. I have met other members of my families....and shared information...which was valuable to them and me. Your last question....degree of blood is specific to a particular tribe. Also, each tribe has their own degree of blood determination to be able to apply for membership. I would like to encourage you to learn as much as you can, about the tribe(s) you believe you have connnections with. I have found that if you do some homework, before you search, your questions will be more insightful...and you will be respected for the time you have put in to study. jes