There is not a census for every reservation or group of American Indians for every year.
Prior to digitization, these records were only available via microfilm publication M595.
It was suggested that a native name be retained as much as possible, but not if it were too difficult to pronounce and remember.
If it were easily pronounced and mellifluous, it should be retained.
The original was sent to the Commissioner of Indian Affairs; multiple copies were not created.
The earliest censuses were written in by hand, but typing appeared quite early.
There were no instructions with the earliest census forms, except to include all Indians under the agent's charge, but the Commissioner did occasionally issue a statement about the census.