海軍元帥
John Mackintosh wrote a will on 6 March 1938 allowing the provision of a public trust for the advancement of education in Gibraltar. He was keen in fostering links between Gibraltar and the United Kingdom, so much so that the educational provisions of his Will were designed to promote and strengthen these ties. Besides the cultural and educational needs of the young Gibraltarians, he provided homes for the aged, poor and for an additional wing to be built as an extension to the then Colonial Hospital. The hospital's "John Mackintosh Wing" with its 76 additional beds, was opened on 22 September 1969 by the then Governor and Admiral of the fleet Sir Varyl Begg who described it as a: