Frank Wigglesworth Clarke

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Frank Wigglesworth Clarke (and others).jpg
Smithsonian Geologists and Paleontologists outside the Arts and Industries Building, 1886. Included in the photograph are: (top, left to right) Frank Wigglesworth Clark, William F. Hillebrand, T. M. Chatard, William Hallock; (bottom, I to r) James Edward Whitfield, Frank Austin Gooch, Carl Barus, and R. U. Riggs.