I'm aware that names may differ between documents. Still, to my knowledge and also in all documents I have seen so far, the last name of Manuel is Chasler and not Chandler. He can be found in "joodsmonument" under the name Chasler. Also Manuel Chasler has a link to Bellina Davidoff. Again, to the best of my knowledge their children's last names are Chasler. I noticed Manuel's birth place was marked as Rotterdas, which should probably be Rotterdam. Of course I do not know who added which person, but may be it can be corrected ?