While looking for a particular Department of Defense official, I stumbled on: Department of Defense Key Officials September 1947–June 2017.
Yes, almost seventy (70) years worth of key office holders at the DoD. It’s eighty (80) pages long, produced by the Historical Office of the Secretary of Defense.
One potential use, aside from giving historical military fiction a ring of authenticity, would be to use this as a starting set of entities to trace through the development of the military/industrial complex.
Everyone, including me, refers to the military/industrial complex as though it is a separate entity, over there somewhere.
But as everyone discovered with the Panama Papers, however tangled and corrupt even world-wide organizations can be, we have the technology to untangle those knots and to shine bright lights into obscure corners.
Interested?