According to the National Park District: "Founded in 1883-84, the Chilocco Indian Agricultural School was one of the first, large off-reservation boarding schools established by the Federal government for the education of American Indian students. It offered academic and vocational training to children of tribes across the United States."
Various records have been scanned by the National Archives and posted online.
THE ANNUALS ARE YEARBBOKS WITH PHOTOS AND TRIBE DESIGNATIONS OF STUDENTS!
Note: Students were from all areas of the US and were from various tribes.
Here's a link to the online files:https://catalog.archives.gov/search?q=chilocco&tabType=o...
Note: The yearbook is entitled "Chiloccan."
Also, I noticed that sometimes when I click on an object nothing is visible. Be patient -- it should open in a minute. If it doesn't, then choose the "Download High Resolution PDF" in the bottom left.