Joseph RUBSAM co-founded the brewery with August HORRMANN in 1870. The father of your Rita RUBSAM was also named Joseph; both she, her 3 sisters, and parents were born in NYC. Rita's father was a dock builder and dock laborer in Manhattan and Staten Island. Vital records exist for the marriage of Rita to DOLAN, as well as for her parents.
If you need further help about your great grandparents, click on my name above, for my email address.
In the genealogy community, we don't list details of living family. Perhaps you should contact the Richmond County List Administrator to decrease your post.