Correspondents include but are not limited to: Sir Gordon Wolstenholme, Royal College of Physicians, Wellcome Institute for The History of Medicine, Lawrence Aspden (The University of Sheffield Library), Sir Earnest Finch, Epsom College, Sir James Purves-Stewart, National Potrait Gallery, Dr. Michael Bevan (New Dictionary of National Biography), Sir Malcolm R. Innes of Edingight, Reverend Michael Fermer and Dr Harold Thomas Swan.