David Mathias Dennison was an American physicist who made contributions to quantum mechanics, spectroscopy, and the physics of molecular structure.
Dennison at his home in Ann Arbor, Michigan, 1969
University of Michigan faculty portrait
George Eugene Uhlenbeck was a Dutch-American theoretical physicist, known for his significant contributions to quantum mechanics and statistical mechanics. He co-developed the concept of electron spin
Visualization of electron spin on a wall in Leiden
G.E. Uhlenbeck, H.A. Kramers, and S.A. Goudsmit circa 1928 at the University of Michigan in Ann Arbor