Have you been on the Louisville Public library site that has old newspapers? Articles can be found from 1830 through 1922. One must have a Louisville library card to use the service. There is a very good article on Anton Pracht as it tells about his life. Since it is in pdf. form I cannot attach it here. I'll be glad to send it to you if you want to give me your e-mail address.

http://lfpl.org/research/Subjects/NewspapersRemote.asp

I hope that others can give you information too.