Home Sawtry Whitehall Convalescent Hospital, Sawtry (c.1916) Whitehall Convalescent Hospital, Sawtry (c.1916) January 14, 2017 961 Facebook Staff and soldiers at the Great War convalescent hospital at Whitehall, south of Sawtry. Now known as Coppingford Hall, the building is now the administrative HQ for Supreme Concrete.