Her Gleiwitz residence card gives the same address as Max, Pauline and Frieda from 1920; it also names her husband as Helmrich and says she moved from Gleiwitz to Schoppinitz.

Frieda describes herself as Kaethe's sister in her testimony, in which she also names Kaethe's husband as Heinz Helrich and confirms their pre-war address as Schoppinitz.

Her brother-in-law's testimony identifies her husband as Heinz Hermann Helmrich.

She also appears in the Breslau synagogue community address list (ca 1930) at Wallstrasse 31 under her maiden name.