1. Kings College Cambridge, Archive Centre holds the extensive papers of John Maynard Keynes
2. The Lloyds Banking Group Archives contains archival material on Scottish Widows including their annual reports to policyholders
3. The London Metropolitan Archive (LMA) holds comprehensive archival material, including Board minutes and some of Keynes’ correspondence, about the National Mutual Life Assurance Society
4. Clive Bell, Old Friends (Harcourt Brace 1957)
5. Richard Burns, A Century of Investing: Baillie Gifford’s First 100 Years (Birlinn 2008)