National Trust for Historic Preservation: Denver, Colorado: correspondence; clippings; 1970 meeting schedule; list of officers; list of committees; 23rd Annual Meeting and Preservation Conference, Denver, Colorado, October 2-5, 1969: announcement, meeting minutes, program, list of registrants, "Brief Biographies of Speakers," meeting agenda, list of Feiss' conference expenses., 1969-1970

National Trust for Historic Preservation: Denver, Colorado: correspondence; clippings; 1970 meeting schedule; list of officers; list of committees; 23rd Annual Meeting and Preservation Conference, Denver, Colorado, October 2-5, 1969: announcement, meeting minutes, program, list of registrants, "Brief Biographies of Speakers," meeting agenda, list of Feiss' conference expenses., 1969-1970, Box: 19, Folder: 4. Carl Feiss papers, 2635. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/370250 Accessed December 14, 2025.