Cochrane had many interests apart from heraldry. For nearly 30 years he served on the Court of the New England Company—a charity originally set up by Oliver Cromwell to evangelise the native inhabitants of North America. He was Governor of the company from 1938 and never missed a meeting.
Cochrane's pursuits extended far beyond his interest in heraldry. For nearly three decades, he dedicated himself to serving on the Court of the New England Company, a charitable organization founded by Oliver Cromwell to spread Christianity among North America's indigenous peoples. As governor from 1938, Cochrane was an exemplary attendee, never missing a meeting.