I have a Frederick Luth born 1851 in my own family tree. He married Johanna Gieselman on Jan 28, 1873 at the house of Fr. Gieselman by Rudolph Hawinghorst, Germ. MC Church. Her approximate birthdate is 1853. I have 2 daughters listed for them, Anna Augusta and Clara, born about 1873 and 1879. I do not have parents listed for either of them but it would appear that Johanna's father is Frederick.
Marriage info was taken from DMC marriage records of which I have a listing compiled by DMC genealogical members. I purchased a number of this type of info from the Iowa State Genealogical Society more than 20 years ago.