Hope your genealogical research is going well. Have you connected with any ADOLPH researchers yet? Do you have any additional information on Victor, Harriet and Louise?
The name Lorenz (Lawrence) can be spelled so many different ways, it's quite possible they are still there - just 'misspelled'. Also, their SURNAMES could have changed, or they could have moved out of the city into the surrounding parishes (quite common).
Just a few of the LORENZ spelling options (Anglais / Francais):
Keep in touch. Perhaps we can still assist with the next phase of your research!
Afrigeneas Chat Coordinator