The Kothoffs, ca. 1895. Top left to right Henriette, Izaak, Jeltje, Benedictus, Israël. Bottom Jacob, Samuel, Martha Lezer (holding son Abraham who resided in the Dutch East Indies on her lap), Betje and Hendrika. (photo M. v.d. Vathorst) F.J. Hulst en H.M. Luning, De Joodse gemeente Assen. Geschiedenis van een behoorlijke kille, 1740-1976 (2e druk; Assen 1993) 111.
In addition, a Jokos file (number 11102) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.The Jokos file reveals that a claim was lodged for compensation for looted securities or bonds. (W-claim, number A8/1176).