Re: Dr Otto Rudolf Frank #germany
I suppose you already are familiar with the Archives of Baden Wurttemberg, where there is a lot of material available on the jewish community of Karlsruhe and surroundings. You should be able to find a lot of things there. I also would suggest you look at the Rosenthal collection at the Leo Baeck Institute - its coverage includes both Mannheim as well as Karlsruhe. A lot of these materials are online.
I noticed the following
Feel free to contact me and depending on what you are looking for I may be able to save you time with some pointers.
Families MAIER / MAYER / HOCHSTETTER / BODENHEIMER
Locations Ettlingen / Karlsruhe / Grotzingen / Kuppenheim / Niederhochstadt (Pfalz)