Zacharias 1 passed away in 1887, according to his tombstone in Alsbach. He is not buried in USA. The year that is written here - 1891 - is the year that Zacharias 2 died, and he is buried in USA:
Zacharias 1 married Carolina Bodenheimer. I guess that she didn't pass away in 1905, that's exactly the same year that Caroline Kahn - the wife of Zacharias 2 - passed away.
Carolina Bodenheimer had 2 children in 1838 and 1839. Zacharias 1 married also Gindel Bodenheimer, that passed away in 1842 while here birth. I guess that they were sisters, and Caroline passed away between 1839-1841.