Thank you for your response. I have been told that Katherine Urbick's grave does not have a marker, but it is in the plot where Peter and Victoria are buried.
According to the immigration records, Anton, birth year about 1855 and Catharine, birth year about 1853, came to US in May of 1884.
There is another Katherine Kampa.
I don't believe any records in Wisconsin would have Anton's wife, Katharine, listed as Kampa, as they were married when they came to the US. I would like to contact you by e-mail, however, I am new at this and do not know your e-mail address.