HI! I just found your message on the Hadler board at Rootsweb.com. I've been interested in Hadlers in Minnesota, since I moved to northern Iowa in 1999. Before that, I had lived most of my life in Illinois, where my Hadler relatives all live, and where Hadler is an uncommon name. I was surprised to find it a fairly common name in Minnesota. Indeed, most Iowans assumed I had family in Minnesota, because of my name. I even did a wedding (I'm a pastor), for the granddaughter of some parishioners--she married a nice young man named Hadler!!
Since then, I've been curious as to whether there is a connection between my Hadler family in Champaign, Co, IL and those in Minnesota. I've returned to Illinois, but am still curious.
Have you learned of any migrations between Illinois and Minnesota?
Thanks for any help!