Between 1949 and 1959 Toronto mass market paperback publisher Harlequin published 455 titles that are new editions of books published earlier. Here I listed the 89 for which Harlequin retitled their edition.
Here are the five oldest titles that were retitled, published between 1911 and 1935. Original titles in square brackets.
- Curwood, James Oliver Steele Of The Royal Mounted [Philip Steele of the Royal Northwest Mounted Police], originally published by Bobbs-Merrill (Indianapolis, 1911).
- Ullman, Albert E. Hoodlum Alley [At Your Service], Macaulay (New York, 1932).
- Webster, M. Coates Mona [Derelict Alley], Macaulay (New York, 1933).
- Berg, Louis World Behind Bars [Revelations of a Prison Doctor], Minton, Balch (New York, 1934).
- Bull, Lois Forbidden [Captive Goddess], Macaulay (New York, 1935).