I found, among other things, an announcement, in Prager Tagblatt, for the civil wedding, in Breslau, of my great grandparents Moritz and Anna Feig.
http://anno.onb.ac.at/cgi-content/anno?aid=ptb&datum=18841215&a...
There is an odd hypermobility and and a wondeful modernity in this. The announcement confirms info given to me by Geni researchers, -that g grandfather was from Deutschen Rust, that his parents were Abraham and Judith, (I wonder if my grandfather even knew the name of his grandfather, who died 50 years before he was born, and his father died when he was two) it also places my g grandmother as residing at the address in 1884 that is listed as the address of her father in a Breslau Addressebuch in 1887 , he is an otherwise shadowy figure who's existence in my family tree is otherwise only confirmed by my grandfather's birth record.
This is an amazing site. Yes!
Additionally my g grandfather and grandmother were both business people who each ran their own businesses, (as opposed to my g grandparents in Brooklyn same period, the woman stayed home) as can be confirmed by frequent ads placed in PT for the two businesses.