Downtown Courthouse, Madison & Columbus St., Ottawa. Hours: 8:00 - 4:00 Mon. - Fri., this Courthouse contains the following records (starting date listed): Probate 1839 Court 1870 Naturalization 1840 School 1900's Dear List: this information is from the LaSalle County web page. I contacted the courthouse and they said they do not have them (naturalization records). Someone from the Guild said they have the naturalization records(I am looking for the 1st papers) on film but I do not know if I should write the guild a letter or if they have a email address to do a lookup since I am unable to go to Ottawa? I am a brick wall. would like to know the date of arrival from Austria, as I have the year 1893. Any ideas or suggestions? Arlene crowfoa@aol.com