This collection includes correspondence (4 linear feet), diaries, manuscripts of publications, and research data (6 linear feet.). Mooney-Slater (1902- 1981) was born Rose Camille LeDieu and grew up in New Orleans, Louisiana. She received her BS at Newcomb College, MS at Tulane University and PhD from the University of Chicago (1932) where she worked under Will Zachariasen. Recognized as an outstanding crystallographer, she was the recipient of a Guggenheim Fellowship, appointed chair of the physics department at Tulane University, worked at the Metallurgical Laboratory under the auspices of the Manhattan District at the University of Chicago, and on the structure of crystals and crystalline materials using X-ray diffraction.