I have a little information on Killian Kolb Sr.He appears in the 1900 census at Mascoutah (although mis-indexed as William) with wife Catherine, daughters Alma (b. 1891) and Lucinga (b. 1897) and a son, Elmer (b. 1894).Killian & Son issued a 25 cent token, of which I have a specimen, for their general store business.
I shall prowl around a bit to see if I can pick up Killian Jr.Feel free to contact me by email.