Letter to Frederick H. McDonald from Helen Gardner McCormack (April 3, 1942) asking him to write something about the development of Charleston architecture for an upcoming article about the exhibit..
Letter to Mrs. Sidney Tesky from Helen Gardner McCormack (April 21, 1942) requesting that she not remove the fire insurance mark at her home (32 George Street).
Letter to the National Planning Association from Helen Gardner McCormack (July 2, 1941) requesting information about regional/community planning studies.