Named in Lotte Proskauer's notes (courtesy of PF) as Shaye's daughter by his first marriage; the notes say that she married Pniower. A death certificate on ancestry.com for an Albert Pniower, born in Gleiwitz (died 1912 agd 41 years so born 1871-72), son of Samuel Pniower and Rosalie geb. Freund, may be relevant.