https://yvng.yadvashem.org/index.html?language=en&s_id=&s_lastName=hasfeld&s_firstName=joseph%20rubin&s_place=&s_dateOfBirth=&cluster=true
His Wife/seine Frau:
Their son Moses Jakob Hasfeld:
Mrs. Ids Hasfeld nee Wilk, spouse of Moses Jakob Hasfeld and daughter in law to Mr. an Mrs. Hasfeld