Mara Thorson and Nothmann Family Collection, 1978 give her date of birth as 04.08.1830 whereas JRI-Poland gives 11.07.1830.

According to Nothmann Family Collection, 1978, both Pine Nothmann and Rahel Nothmann were married to a Salomon Cohn, although I've found no confirmation of either marriage in any other source. It is likely that Salomon was married first to Pine and then married her younger sister following Pine's death in 1850.