Leopold Horace Ognall (20 June 1908 – 12 April 1979),[1] known by the pen names Hartley Howard and Harry Carmichael, was a British crime novelist.
Ognall was born in Montreal and worked as a journalist before starting his fiction career.
As Harry Carmichael, Ognall's primary series characters were John Piper (an insurance assessor) and Quinn, a crime reporter.
As Hartley Howard, Ognall authored the following novels (with year of publication): Ognall created the pseudonym "Harry Carmichael" as an amalgam of the names of his immediate family: His son Harry, his wife Cecilia, his daughter Margaret, and his son Michael.
As Harry Carmichael, Ognall authored the following novels (with year of publication):