Jackson was president of the Institute of Industrial Welfare Workers (later the Institute of Labour Management) in 1927-1928 and 1936-1938. A Scotsman, he appears to have settled in London around 1918 or 1919. During the 1920s and 1930s Jackson was employed as welfare officer of Messrs R H Green and Silley Weir Limited, ship repairers. He was a committed Christian and involved in a number of charitable cum evangelical bodies, particularly those for young people. He was general secretary of the Interknit Athletic Association, 1919-1920. In 1937 an annual report of the Poplar Advisory Committee for Juvenile Employment records that, in addition to chairing that body, he was secretary of the Ship Workers Jubilee Housing Trust and a member of the British Management Council, the British Social Hygiene Council, and of both the metropolitan and the national councils of the Young Men's Christian Association (YMCA). In the YMCA he was particularly associated with the Plaistow Red Triangle Club.
During part, at least, of the Second World War Jackson was an area labour officer of the Ministry of Supply. It is likely that he held this position at Thorp Arch Royal Ordnance Factory, Boston Spa, Yorkshire, but this has not been conclusively proved. In, or possibly before, 1943 Jackson was appointed industrial relations officer of the Cable Makers' Association. In this capacity he became joint secretary of the National Joint Council for the Electrical Cable Making Industry.
Jackson was a member of the Masonic Lodge Freedom and Courtesy no. 4762 of London and secretary of the lodge's benevolent associations.