Black and white portrait with the following printed description: Major John Wesley Powell - 2nd Director of Geological Survey (March 18, 1881 to June 7, 1894).
Black and white image of the Black Canyon Reservoir site as seen from Monument Pass on the Nevada side of the Colorado River. This photograph was taken at 6:25 a.m.
Consulting geologist and surveyor Franklin Mac Murphy was born on December 27, 1898 in Wheaton, Minnesota. He studied at Columbia University, the University of Arizona, and the University of California, Los Angeles, completing his graduate studies in 1930 at the California Institute of Technology, in Pasadena, California.