Ping to #40
Firstly, it looks to me like the black man did not infiltrate the KKK. The sources in #40 seem to say that he got a white man to do it for him.
Secondly, I didn’t see an estimate of how many KKK people there were in CO. I’m pretty sure David Duke was near the east coast somewhere. For all I know he sent one guy to CO to try and recruit.
The KKK was big in OK in the early 20th century, but by the 1960s was defunct. I don’t see any reason to suspect any significant KKK activity in CO in the second half of the century.
Actually, the more I think about it, the more I want to say that this man was outright lying when he said he “infiltrated” the KKK. He messed with a few racists in a rather adolescent way, that’s all.