The railway ing. was Jacob (Jakob) Hermann Hirsch Wollheim, born 1835, a brother of Peter Anton da Fonseca-Wollheim (wikipedia). . His son Herman was the Marine officer, and the other son of Maximilian was the doctor in Hamburg. The son of Maximilian, with name Herman was also a Doctor in Hamburg. He has the son Friedrich and a son Herman. Too much Hermans and therefore to mismatch. I'm not sure who Hermann and Doris was.