Steve,
I just saw your family tree here on ancestry. But your Charles Kayser and all his relatives do not seem to be the right ones. According to the marriage record of Ida and Charles his parents were Daniel Kayser and Leonora Oppermann and he was born abt. 1833 in Goettingen, not 1847 in Ebersbach near Goeppingen:
https://familysearch.org/ark:/61903/1:1:249S-63XAnita