Census Links is a growing catalog of links to transcriptions of census, tax lists, birth, death, marriage and military records, all freely available to help with your genealogy research.
1900 Indian Territory, Cherokee Nation
From the Caddo County, Oklahoma GenWeb
Includes the existing counties of that time: Logan, Oklahoma, Cleveland, Canadian, Kingfisher, Payne, and Beaver.
1900 Oklahoma Territory, Reservations
From Lost Dove's Homepage
1900 Indian Territory, Creek Nation (Partial)
1900 Indian Territory, Reservations, Oklahoma (Partial)