This collections contains the professional research, writing, publications, and correspondence produced and collected by Rattner through her study of the architect James Renwick, Jr. The bulk of Rattner's research addresses the life and works of Renwick, but other research topics represented in her papers range from the Renwick family genealogy to the institutional architecture of New York City. Types of research material include personal research notes (in notecard format, both typed and holograph), correspondence (1963-2001), newspaper and magazine clippings, Xerox copies of archival material and secondary sources, transcribed articles and correspondence, brochures from historic sites, photographs and slides of buildings and sites, sketches, historic structure inventory forms, landmark nomination forms, landmark designation reports, and postcards.