A special thanks to the individual clans, the related members of Siol Alpin for allowing me access to websites,sharing histories and information and  with recognition of the following resources:

Ardchoille, American Clan Gregor Society

Born Fighting, James Webb

Bruce (The), John Barbour

Bruce Trilogy (The), Nigel Tranter

Burns Selected Poetry, Penguin Publishing

Celtic Myths and Legends, T.W. Rolleston

Celtic National Dress, S. O'Dubhain & I. MacAnT-saoir 

Children of the Mist, Nigel Tranter

Children of the Mist: the Story of the Scottish Highlanders, J.D. Keyser

Clan Gregor, Forbes Macgregor 

Clannada na Gadelica, Gaelic Resource Facility

Clans of the Scottish Highlands, J. Logan

Clothing of our Ancestors (The), P. Lawrie

Controversial Issues in Scottish History, W.H. Gregg

Decoding the Celts, C. Hamilton & S. Eddy

Druids - Origin & History, L. Spence   

Siol Alpin, Encyclopedia Britannica

Heraldry & Protocol, Court of the Lord Lyon

Highlanders, a History of the Gaels, J. MacLeod

Highland Rouge - Rob Roy MacGregor, Robert Lewis Stephenson

Historic Scotland, Government of Scotland

History Book for Scots (A), W. Bowers

History of Clan Gregor (1898), Amelia G. M. MacGregor

History of Clan Gregor, Hal MacGregor

History of Highland Dress, J.T. Dunbar

History of Nations, Collier

History of Scotland, P. Fry & F.Somerset-Fry

History of Scots Affairs, Gordon

How the Scots Invented the Modern World, A. Herman

In Search of the Dark Ages, M. Wood

In the Footsteps of Robert Bruce, A. Young & M. Stead

King of the Celts, J. Markale

Last of the Celts (The), M. Tanner

MacGregor Gathering (The), Sir Walter Scott

MacGregor Trilogy (The), Nigel Tranter

MacGregors (The), Heritage Publishing

Marbhrann do'n t-Ailpeineach, Paraig MacNeil

Mark of the Scots (The), David A. Bruce

National Library of Scotland

National Museum of Scotland

Outline of History (The), H.G. Wells

Picts (The), Hal MacGregor

Proceedings of the Society of Antiquaries of Scotland

Rerum Scotiarum Historia, George Buchanan

Rob Roy's Country, Mary McGrigor  Rob Roy, Sir Walter Scott

Robert the Bruce King of Scots, Robert M. Scott

Rosslyn, T.W. Wallace & M. Hopkins

Scotland, David Lyons

Scotland, N. Blundell

Scotland, a History, J. Wormald

Scotland, An Intimate Portrait, Geddes MacGregor

Scotland Magazine, Paragraph Publishing Ltd.

Scotland, the Story of a Nation, M. Magnuson

Scots Kith and Kin, Albyn Press by Clan House

Scotsman Magazine, Scotsman.com

Scottish Gaelic Studies, N.K. Chadwick 

Scottish History, C. Tahbraham & C. Baxter

Scottish Nation (The), T.M. Devine

Scottish Tartans, Sir Thomas Innes of Learney, Lord Lyon King of Arms

Scottish Clan & Family Encyclopedia, George Way of Plean & Romilly Squire

Siol Alpin, http://siol-alpin.com by Dodd L. Greer, FSA (Scot)

Surnames of Scotland, George F. Black

Tales of a Grandfather - Scottish History, Sir Walter Scott 

Visit Scotland, Scottish Tourism Board

Wallace (The), Nigel Tranter

Who Were the Celts?  Kenneth Duffy