Susan, I don't find your Michels in my tree, but, in Mary Nilles book "In A Large Circle of Relatives" a genealogical guide to Rollingstone, Mn where many of "our" Milwaukee Co., Luxembourg relatives migrated to or had family members there, I found a Katherine Michels b 3-26-1799 in Contern, Lux d/o Nicholas Michels and Anne-Marie Feydert married 11-17-1794. Katherine married Nicolas Speltz 12-30-1822 in Contern. I don't have an immigration date, but it was early migration their youngest child was born in 1843 in Contern. Thelen's, Gengler's and Speltz were cousins. I wish I could be of more help to you, Cindy