Clan Campbell has never been a legally
constituted body. While the existence and power of the Chiefs to
lead their kinsmen and followers was increasingly acknowledged
as a political fact of life in Scotland, clans were never organized
into the system of government. The first Clan Associations or Societies
were founded in the late 18th century as a means of keeping a sense
of kinship among the increasingly scattered members of clans who
were being drawn or driven away from their home communities by
over-population, the industrial revolution or by opportunities
for emigration. Like most Scots, all Campbells are a blend of races
through maternal ancestry, although there were times from the 16th
through the 18th centuries when, among some leading families in
Argyll and Perthshire, they had grown so numerous as frequently
to intermarry, intensifying their characteristics as a kin. Many
also share the Scots Gaelic blood of the Dalriadic O'Duibne people
whose heiress their ancestor married on Lochawe in the 13th century.
Their paternal ancestry is apparently from the Britonic Celts of
Strathclyde, sometimes called the "Romano British" from
the northwestern part of the early "Kingdom of Strathclyde".