Biographies
Time Line
 

Black Bull Dinner - Edinburgh Castle
Documents in National Library of Scotland
Douglas - A story
Douglas and the Act of Union
Douglas and the Act of Union, 1707
Douglas castles in England
Douglas heart
Douglases and the slave trade
Douglases and the slave trade - South Carolina
Drysdale document
Irish slaves
Origins of the Douglas Familiy
The Covenanting Wars 'The Killing Time'
The Douglas Larder
The Douglas Tragedy
The Rulers of Scotland

SR Crockett's book, Black Douglas, is not 'history', yet it is a historical record, and is worth the reading.  It can be found in the Project Gutenburg.