Authors
- Duff Hart-Davis
- Rupert Hart-Davis
- Leo Hartas
- Adeline Hartcup
- Guy Hartcup
- Bret Harte 6
- Glynn Boyd Harte
- N.B. Harte
- Negley Harte
- Heinz Hartel
- Wilhelm Hartel
- James H. Harter 1
- Jim Harter
- Darald J. Hartfiel 1
- John Harthan
- Mary Hartier
- R Hartig
- Dan Hartigan
- L.R. Hartigan
- Rosemary Hartill
- J.E. Harting
- James Edmund Harting
- Daniel L. Hartl
- Edwin Sidney Hartland
- Robert A. Hartland
- A.N. Hartley
- B. Hartley
- Brian R. Hartley
- C. Gasquoine Hartley
- C.W.G. Hartley
- C.W.S. Hartley
- Cecil Hartley
- Dorothy Hartley
- E.N. Hartley
- Emily Hartley
- Gilfrid W. Hartley
- Harold Hartley
- Ian Hartley
- J.R. Hartley
- J.R.L. Hartley
- Janet M. Hartley
- Jesse Hartley
- John Hartley
- K.E. Hartley
- Keith Hartley 1
- Kenneth E. Hartley
- L.P. Hartley
- Marie Hartley 1
- Olga Hartley
- Paul Hartley
- Peter Hartley
- Robert F. Hartley
- Roger Hartley
- Scott Hartley
- T.E. Hartley
- W.C.E. Hartley
- Walter Gilber Hartley
- Bob Hartman
- C. Hartman
- Day Hartman
- Evert Hartman
- G. Hartman
- Geoffrey Hartman
- Mary S. Hartman
- Robert Hartman 7
- Susan Hartman
- Tom Hartman
- William Hartman
- Bernd Hartmann
- Cyril Hughes Hartmann
- Erich Hartmann
- Heidrun E.K. Hartmann 1
- Jean-Michel Hartmann
- John Hartmann
- Susan M. Hartmann
- Sven Hartmann
- Thomas Hartmann
- Ursula Hartmann
- W.K. Hartmann
- Wendy Hartmann
- Justus Hartnack
- Norman Hartnell
- Thomas Hartner
- Oonagh Hartnett
- Sonya Hartnett
- Harold E. Hartney
- Phyllis Hartnoll
- Cecile Hartog
- J.P. Den Hartog
- F.P. Harton
- Steven Hartov
- Douglas R. Hartree
- A. Hartridge 1
- Merrillyn Leigh Hartridge
- Nora Hartsfield
- Christine Hartshorn
- J.N. Hartshorne
- Hartsinck
- William Hartston
- Frederick Hartt