This folder contains correspondence between Professor Brackett and his colleagues from observatories in America and Europe.

This folder contains correspondence between Professor Brackett and his colleagues in the astronomy field, manufacturers of astronomical equipment, and with, Dr. Abott, a colleague from the Smithsonian, who Brackett travelled with to Algeria to conduct research for the U. S. government.

This folder contains correspondence between Professor Brackett and paper manufacturers and manufacturers of astronomical equipment.

This folder contains correspondence between Professor Brackett and his colleagues as well as book publishers, and academic libraries.

This folder contains correspondence between Professor Brackett and his colleagues, librarians who wanted to obtain a copy of Brackett's recent publication in Pomona College's Astronomical Society's journal, and membership fees for the Astronomical Society, and publications about the abolishment of the Fahrenheit thermometer by Honorable Albert Johnson from the U.S. House of Representatives.

This folder contains correspondence between Professor Brackett and his colleagues, librarians who desired a copy of the recent copies of Pomona College's Astronomical Society's journal, and membership fees.

This folder contains correspondence between Professor Brackett and his colleagues, librarians who desired to obtain Dr. Brackett's article that was published Astronomical Society journal, and membership fees.

This folder contains correspondence between Professor Brackett and a colleague about obtaining a recommendation to teach at Pomona College.

This folder contains an invitation from Meredith Snyder, the mayor of Los Angeles, to Professor Brackett to greet the Belgian King, Albert I in Los Angeles, California.

Frank P. Brackett's papers contain professional and personal correspondence, manuscripts, Pomona college documents, Personal documents, Government publications, financial documents, illustrations, ephemera, and newspaper clippings and pamphlets.