The Charles Frederick Chandler collection is composed of several parts. It contains a miscellaneous collection of approximately 167 drawings, notebooks, letters, pamphlets, clippings, etc. formed by Chandler on the subject of tenement housing and documents work on Chandler's house at 51 E. 54th Street in New York City. The Chandler collection also contains 13 photographs, collected by Chandler, related to the Centennial Exhibition in Philadelphia. Additional materials include a collection of photo processes and two E.T. Potter broadsides dated 1887-1888.

The collection is made up of correspondence, photographs, ephemera, Potter's musical compositions, architectural sketches and some photographs of projects. The projects include residences as well as St. John's Cathedral in Jacksonville, Florida and The First Dutch Reform Church in Schenectady, NY.

Architectural historian Sarah Bradford Landau is a scholar, advocate, and public servant in New York City, active from the late 1970s into the second decade of the 21st century. Landau's research includes a focus on the architecture of William Appleton Potter and Edward Tuckerman Potter (on whom she wrote her dissertation), the gothic revival (especially its influence on American church architecture), and the skyscraper. The bulk of the collection is made up of research and lecture files. Additionally, the collection includes a number of personal effects, including portraits of Landau as well as her ephemera files, which include clippings, correspondence, and other mementos from the colorful and celebrated career of a public intellectual beloved in many circles in New York City and beyond.