"Neither Dunn nor Deady were alone in their racist views. Deady’s thinking was in line with that of most Oregonians at the time of statehood." 

A some what disingenuous statement, "in line with that of most Oregonians". Deady and Dunn were active among the democrat party of Oregon. From what [limited in detail] research I could piece together other KKK members referenced as having some association with Deady and Dunn likewise were democrats. Maybe part of the answer is in Black Lives Matter needs to bill the Oregon Democrat Party for reparation.