Pleydell, Malcolm James Correspondence with M J Pleydell at the Northampton County Council Health Department, about the possibility of Penrose taking palm prints from patients with Down's syndrome, and regarding a draft report titled "The Epidemiology of Mongolism and Other Congenital Abnormalities in Northamptonshire", a copy of which is enclosed, alongside a pedigree chart. B J Warland writes on behalf of Penrose. Feb-Apr 1957