In the late 1990s, scholar Waziyatawin Angela Cavender Wilson approached the Yellow Medicine East School District after her daughter came home crying because of a line in the book, first attributed to Gen. Philip Sheridan but a common saying by that time: “The only good Indian is a dead Indian.”
However, in her own lifetime Wilder apologized for some of her thoughtlessness, and amended a line in Little House that read Kansas had ‘no people, only Indians.’ It now reads, ‘no settlers, only Indians.'”
https://www.yahoo.com/lifestyle/laura-ingalls-wilders-name-removed-award-racism-concerns-221528580.html