All of the 1885-1940 Indian census rolls with their images can be accessed for free from AccessGenealogy. For the most part, these rolls dated after 1900 were done in alphabetical order and were typewritten – this should help make finding your ancestor much easier. The earlier ones though were often done in handwriting and the film quality can be very poor at times. Beginning in 1930, the rolls also showed the degree of Indian blood, marital status, ward status, place of residence, and sometimes other information.
Indian Census Records will provide answers to many questions about your ancestry. The database provided by Ancestry.com lists: Name (Indian and or English Gender Age Birth date Relationship to head of family Martial Status Tribe name Agency and reservation name Images by Jurisdiction, from Ancestry.com: Clallam, Lummi, Muckleshoot, Nooksak, Suquamish, Puyallup, Skagit, Swinomish, Snohomish Indians