Just saw your posting on the Thielen name and I have some information concerning this family. My family was from Lemont and I have copies of many church records. My family name is Mather but in the distant past it was Mader. My great aunt Theresa Mather(s) married John Mader in the Lemont area (Will County) in 1864. I am very interested in the Mader name in the area. Stephen Thielen was married to Elisabetha Mader, but some of the records have her name spelled differently. Six of their children are recorded.
Henry, born 24 July 1868 Christopher, born 4 Jan 1870 Wilhelm, born 21 Sept 1871 Stephan, born 12 Aug 1873 Elisabetha, born 24 March 1876 Joseph, born 23 Sept 1877
Your list has many more names and I will look for the rest. I suspect that you would like copies of these records. I'll send them, if you eMail me your mailing address.
I suspect that the Thielen family in Lemont was connected in some way to my uncle John Hennes' family, but I don't know how. Is the name Hennes familiar to you?