index
The Book of the Duff's
compiled by Alistair and Henrietta Tayler
Volumes 1 & 2.  Fully text searchable.
19 megabytes!
The Clan Duff  (VA/TN)
by Christine R. Brown & Donald V. Brown Ed.D
Mostly pertains to the US families that settled in Virginia and Tennessee.
Some Scottish and Irish Duffs mentions.  Published in 1978.
A few pages may be missing.
7 megabytes.
Memoirs of the Duffs by William Baird of Auchmedden.
Privately published in 1869 and was written around 1770.
1.7 megabytes
The Forefathers and Families of Certain Settlers in Western Pennsylvania
by Wm. Boyd Duff.  Written in 1976.
Only the first 70 pages dealing with the Duff family.
776K file.
Click on link to view PDF, or right click and Save As to save to your PC for
off-line reading.
The Book of the Duffs Chart Of Adam Duff of Clunybeg 58K 11x34"
These are all scans of great DUFF family reference books that are extremely hard
to find (or near impossible).. and not available in any book stores. (No longer
published.)  They are provided here for individual genealogical research and
may NOT be sold ever.  

These are PDF versions of these books.  They are fully text searchable.
Duff Family Genealogy Resources