If you're really that interested in all these guys, then why not take yourself down to the BA-MA Freiburg for a week and research their PERS-6 files? You will need to complete a clearance form, so I would be general rather than overly specific as regards your interest.
Failing that, engage a paid researcher like Sebastian Remus:
http://www.bundesarchiv.de/imperia/m...freiburg_2.pdf