RG -- 27, Kato Van Leeuwen Papers and Correspondences, 1930s -- 1990s.
The record group (collection) comprises scientific articles penned by Kato Van Leeuwen and her colleagues. There is a number of documents related to official correspondence.
A separate category of documents are papers and correspondences with regard to Kato Van Leeuwen activity in the Rosanoff Fund (Rosanoff fellowship).
Overall the main research topics in the works of Kato Van Leeuwen were correlated to the various facets of child psychology.