In doing research on my Rademacher line I ran across a John B. Rademacher who was born Mar.5,1881 in Washington Township, Cickasaw Cty. IA. His Father was Wenzel and Mother Christina. Mothers maiden name was Lausing. She was from Washington Township. Born in Wis. Wenzel was from New York. John B may have been married more than once. I found a girl named Eddie Mae born may 29, 1899 parents Annie Mauska And John Rademaker. I also found a son Cletus born 1907 whos parents were Mary Rosaure and John B Rademacher.
I hope some of this helps.