Last year, a family bible heirloom that was kept in a storage unit in SE Michigan was seized due to failure to pay the rent. This may be a long shot, but I thought I'd put it out there into the Wiki-world: has anyone come across a family bible that would have had marriages and dates in it for William and Sophia Kurz, who emigrated to Wisconsin from Wurttemberg, Germany in the 1850s? William was born in 1829, and we have very limited information on his wife Sophia. They had 6 children, born in the 1860s and 70s - William Ferdinand, Harry, Charles, Emma, and Sarah &Emelia who both died as infants.
If anyone has any guidance on how to do a search like this, please feel free to chime in!