I really appreciate your post.And we are probably related through Arthur Rosenbaum, at least.You'll get a copy of an email I just sent to Netter relatives.
I have several pictures of Dan Netter, but can't reliably pick him out of the 1915 Meyer wedding photo.Perhaps one of his daughters (to whom I've sent the URL) can help.I'm happy to send you a couple of scanned photos of him if you like.He was a mildly stocky man, dapper (but they all look dapper in tuxedos, later a bit balding (but maybe not in 1915).
Perhaps you have a scanned copy of the wedding book page?
Your other wedding guests:Essie Netter was my maternal grandmother.She died around 1920. Carrie Netter, her sister, later raised my mother, married to William H. Schreiber.Abe Netter, their brother, was married to Bertha Holz.Fannie (Levi) Netter was their (and Dan Netter's) mother.Fannie was also Esther Levi Rosenbaum's sister, and thus Arthur Rosenbaum's maternal aunt.Fannie's husband (not on your list) was Gerson Netter.
I would be very interested in further information about your tree.I'll look further on your website.I have a little Rosenbaum info, which you probably already have:
1.____ Rosenbaum and Esther Levi had four children that I know of.I have a bit of info about Esther's family as well.
2.Arthur Rosenbaum married Sarita Strauss (sister of Alvin Strauss) and had one (so far as I know) daughter, Alexan (?Alexandra). Flora married Frank Ziegler.I have a bit more on them. Cornelius had several sons by _____. Helen -- no info
3.Alexan Rosenbaum married Lou Hoffman and had a daughter who may have been named Sarita Lori.The family lived in Little Rock at one time.
I know little about this line, and would like to know more, particularly if you're in there somewhere.
I have one "Hallie" on my Netter side.Halllie Redwood married Frederick J. Schreiber, a vaudeville entertainer and brother (and partner) of my great uncle, probably around 1905-1915.
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