Authors
- I.S. Duff 1
- J. Clarence Duff
- J. Wight Duff
- J.D. Duff
- J.R.K. Duff
- James Duff
- James H. Duff
- K.L. Duff
- Kat Duff
- Michelle Ann Duff
- Mildred Duff
- Robert A. Duff
- Lady Duff Gordon
- Roy Duffell
- Peter Duffett-Smith
- Arthur Duffey
- Betsy Duffey
- E. Duffey 1
- Eric Duffey
- Peter Duffey
- Anne Duffield
- Kenneth Duffield
- E.S. Duffin 1
- Helen Milicete Duffus
- Carol Ann Duffy 1
- Caroline Duffy
- Charles Gavan Duffy
- Christopher Duffy
- David M. Duffy
- Eamon Duffy 2
- Joe Duffy
- John O.C. Duffy
- Mark Duffy
- Maureen Duffy
- Michael Duffy
- Patrick J. Duffy 2
- Paul Duffy
- Sean Duffy
- Stella Duffy
- Tony Duffy
- Lucie B. Dufty 1
- James Dugan
- M. Dugan
- Mark Dugan
- Michael Dugan
- Sally Dugan
- Charles Dugas
- Anthony M. Dugdale
- Blanche E.C. Dugdale
- Florence Dugdale
- Florence E. Dugdale 1
- G.S. Dugdale
- Geoffrey Dugdale
- Giles Dugdale
- J. Dugdale
- James Dugdale
- John Dugdale
- P.M. Dugdale 1
- Rose Sydenham Dugdale
- Thomas Dugdale 1
- William Dugdale
- Thomas B. Dugelby
- K.S. Duggal
- A.P. Duggan
- Alfred Duggan
- C.J.H. Duggan
- Christopher Duggan 1
- Glyn Duggan
- John Duggan
- M.A.K. Duggan
- Margaret Duggan
- Attilio Dughera
- A. Radclyffe Dugmore
- Captain A. Radclyffe Dugmore
- D. Dugue
- Charles Duguid
- Julian Duguid
- James Dugundji
- Georges Duhamel
- Jean Duhamel
- M. Duhamel
- Duhig Berry Ltd
- E. Duhring
- Michael V. Duignan
- W.H. Duignan
- Nancy Duin
- Rick Duiven 1
- Michael Dukakis
- Helen Dukas
- P. Dukas
- Catriona Duke
- Donald Duke
- Geoff Duke
- Graham Duke 1
- Kate Duke
- Madelaine Duke
- Neville Duke
- Robin Duke
- Winifred Duke
- Larissa Dukelskaya