Skene wrote that "it is therefore impossible to doubt that Mac Arthur was at this time the head of the clan, and this position he appears to have maintained until the reign of James I of Scotland."
Skene escribiu que "é polo tanto, imposible dubidar de que os Mac Arthur era daquela o xefe do clan, e esa posición mantívoa ata o reinado de Xacobe I de Escocia."