Catharina Polak was married to Aron Cutzien. They had a daughter, Judith Sippora. The family lived at 56 Diezerstraat in Zwolle.
Algemeen Politieblad, nr 8, 25 February 1943, 211, notice 573 D. Stibbe and J. Hagedoorn, Herinneringsboek joods Zwolle 1940-1945 (Zwolle 1995) 30-31