Frederick Hanley Seares, staff astronomer at the Mt. Wilson Observatory, was involved in most of the administrative and research activities of the Observatory. Highly regarded for his photometric studies and his editorial work, Seares was a prominent figure in astronomy during the first half of the twentieth century. The papers in this collection begin in 1909, when he arrived at Mt. Wilson, and end in 1945, when he ended his affiliation with the Observatory.Dr. Seares's most important contributions to the science of astronomy pertain to the nature, brightness, and distribution of the stars. His investigations in these and allied subjects are fundamental, and in this field he is recognized as an outstanding authority.... His painstaking work in determining fundamental standards over the whole range of observable photographic magnitudes is recognized by photometric observers the world over as an achievement of the highest importance to astronomy. It was also in 1940 that Seares's wife passed away. Two years later, Seares married his long-time colleague at Mt. Wilson, Mary Joyner.

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