I would like to know everything possible about this man-how would I go about tracing his roots and heirs?

Did he have any children?

Who were his siblings?

Where did his father work?

Where can I find photos of these people?

What was his religion?

Why did he design the Swastika building?

What was the insipation for the Haus of Atlantis?

Does anyone have any theories about why he was racist? Arrogance, illness, education, political, or a bad experience some how-