He became Chairman und Managing Director of the Don Brothers, Buist and Company, an established jute and linen mill which was the largest employer in Forfar as well as vice president of the Tayside Area Consultative Committee for Economic Planning.
Er wurde Chairman und Geschäftsführer der Don Brothers, Buist and Company, einer alteingesessenen Jute- und Flachsspinnerei und größten Arbeitgeberin in Forfar, sowie Vize-Präsident der Tayside Area Consultative Committee for Economic Planning.