Ross - The Heart is Slow (1963), Hidden Room at Collins House (1966), Horace Winslow's Daughter (1966), House of Dark Shadows (1970), Box: 17, Folder: 53. Corporate Papers of the Robert Mills Literary Agency, MS 307. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/230523 Accessed May 16, 2024.