Correspondents include but are not limited to: Dr Harold Thomas Swan, Sir James Purves-Steward, Dorothy Innes-Smith, J. Edward Vickers, Colin Matthew (New Dictionary of National Biography), Lawrence Aspden (The University of Sheffield Library), L. M. Payne, L. Calder Benzies (archivist of Erskine Steward's Melville Schools) and Conrad Swan (Garter Principal King of Arms).