Clan Ferguson is a Scottish clan with origins in the region of Aberdeenshire. The Fergusons held lands in the area, including Pitfour Castle. The family’s history can be traced back to the 14th century. One notable figure from Clan Ferguson is Adam Ferguson, an influential philosopher and historian of the 18th century. He made significant contributions to the fields of moral philosophy and sociology. Adam Ferguson was known for his writings on society, culture, and human nature.