1917-06-05

2 results.

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Main Observatory 33:914 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Staff

Yerkes Observatory Staff

Group photograph, 1917 2:2923 (2013-082)
Series VI: Yerkes Observatory

2 results.