I strongly disagree with the conclusion of this article.
I wonder who I would have been if I had been born in the time of Deady-Dunn. All about would have been signs and attitudes that said that one belonged if one hated Native Americans and non-whites. Odds are I would have been a Klan member, and would have laughed at the most horrible of racist jokes. 
Today, I am grateful that I live in a culture that doesn't allow public agencies or officials racist behaviors. It has allowed me to think and grow and expand my thinking to include all who are different as fellow humans. Change happens when children aren't bombarded with images and pressures to remain ignorant and racist. 
It would be better  if the names of Deady-Dunn were taken off the buildings, and the names of slaveholders like Washington and Madison were taken off all federal buildings. It has to do with the non-verbal learning that children undergo...they don't need to pick up a hint that racism is ok.
Hugh Massengill, Eugene