 Docker married Lucy Constance, daughter of distinguished Birmingham legal figure John Benbow Hebbert (1809-1887), in 1895.They initially lived at Rotton Park Lodge, close to the Docker Brothers varnish factory, before moving to The Gables, at Kenilworth, and, in 1935 moved to Coleshill House, Amersham, Buckinghamshire, where Docker died.He had also acquired a flat in Berkeley Square Mayfair in 1923.