Greetings. Anna Rondeau was my paternal grandmother. My father was Earl James Gavigan. My understanding is that her birth name was Rondeau, but I have also found information in records under the name Rondo. The information that was given in the previous response is correct to my knowledge. The Wielke connection is tricky though. I find information under the names Wilks and Wilke. I'm very new to this, so I question the accuracy of my own research. I have and continue to try to find out when/how my grandmother died, as well as where she is buried. I visited the gravesite twice as a child, so I know it's out there somewhere near Fond du Lac. I hope this helps you and me,as well. If anyone can add more, I would be most greatful.