1. Statesman Yearbook (London, 1885–90).
2. ING Baring Archives: Box Hc4.1.71, Box Hc4 1.113. Ledgers, 1883-93 (London).
3. Kurt Schuler (ed.), ‘Historical financial statistics: data notes’, original version 24 April 2010; updated version of June 2010 viewed at Historical Financial Statistics Website, www.centerforfinancialstability.org/hfs_data.php.
4. Crédit Lyonnais’ Historical Archives: Boxes DEEF 73404-8 and DEEF 73415 (Paris).
5. Burdett's Stock Market Official Intelligence (London, 1880–90).