Insanity File : The Case of Mary Todd Lincoln, Paperback by Neely, Mark E.; McMurtry, R. Gerald, ISBN 0809318954, ISBN-13 9780809318957, Like New Used, Free shipping in the US

Paper edition of the 1986 work based on a bundle of letters, papers, and documents entrusted to the authors by the grandson of Robert Todd Lincoln in 1981. Annotation copyright Book News, Inc. Portland, Or.