I have a Thos Fliss born in Germany who is the father of Ignatius John Flees born in Germany in 1840 and married to Dorothea Kugacz. They are buried in St. Joseph's cemetery in Milwaukee County just south of Milwaukee city. He had a brother named Joseph. He had a son named Ignatius Edward Flees who was father to Frances Josephine (Flees)(Kroll),Marak. I would be interested to hear if he is the one you ask about. These names were given to me by Ignatius Edward's youngest daughter Sophia as she remembered them.
Have you heard from anyone else about this family?