 One of the principal sources of income was the coal mines in its possession, for these monks were among the first, if not "the" first, coal miners in Scotland.The earliest mention of coal in Scotland is to be found in a charter of an Earl of Winchester, granting to them a coal mine.In 1526 King James V granted them a petition to build a harbour at Morrison's Haven, and it is from this date that Aitchison's Haven Lodge was established as a stonemason's lodge.