I would be grateful to hear from anyone who has information on Arnold Klein and Catharina Lotschert (could be Katharina). I have a feeling that Catharina may have come from Germany but I really don't know.
Arnold Klein had 2 sons that I'm aware of:
1. Jacobus Arnold Klein geb. 1856 Rotterdam
2. Wilhelm Klein geb. 1858 Rotterdam
Thanks in advance to anyone who replies!