My grandfather spoke about his experience as a German Jew fleeing Germany and then returning as a member of the Allied forces. I was also recently lucky enough to acquire a eulogy for him.
My 'Urgroßvater' Hugo Liepmann has the distinction of his own Wikipedia page. For insight into his life I found Georg Goldenberg's paper Apraxia and beyond: life and work of Hugo Liepmann fascinating; I can assist with finding the full text if you're interested.
I visited some Liepmann family graves in Berlin.
Perhaps of interest: Guide to the Papers of the Liepmann Family [1878-1933]