1. Folder 18: Membership Certificate 4 Date: 1946 Description: Certificate of membership in the American Society of Planning Officials for Robert N.W. Whitelaw.
2. Folder 18: Kincaid Letter Date: 1946-01-02 Description: Letter to Robert N.S. Whitelaw from H. Evert Kincaid (Jan. 2, 1946) acknowledging request for publications and an enclosed list of Chicago Plan Commission publications.