May be helpful to know... When searching on Bad Arolsen, there are many results (with record images) that do not show up on ushmm searches. ushmm has a vast record collection but only a percentage, like Bad Arolsen, have been digitized and indexed to be made available online. I also find info on Yad Vashem database that isn’t on ushmm and vice versa. Yad Vashem often doesn’t have images that ushmm has. Important to cross check all three databases and any others. ushmm has also has a very useful collections search.
