RUDOLF  IVANOVITCH
"Ivanovitch, the Siberian exile, was one of the most versatile exhibits. He was a hideous little fellow, nearly covered with hair.  One day he would be the exile.  Next day he might go into a cage and be a wild man.  He got a better salary for being a wild man, but it didn't make much difference to him which he was.  If anything he would rather play the exile, because the wild man had to try to eat raw meat.  Ivanovitch didn't like that much".
---  Frank Drew, old-time dime museum operator, 1906
This may or may not be Ivanovitch in his younger years.  Note how the (negative of the) photo on the left has been doctored to produce the much hairier man on the right. Rob't Bogdan in his bood "Freak Show", p. 14, notes the same "fix" in two images of Ivanovitch himself.