Name
- Le Couteulx, Secretary to the French Embassy in London1
- Lega-Weekes, Ethel1
- Lieven, Christofor Andreevich, Prince, Russian Ambassador in London, d 18391
- Lincoln, Family1
- Lindsay, William Alexander, Clarenceux King of Arms1
- Lodge, Edmund, Norroy King of Arms; KH18321
- Long, Charles, Baron Farnborough, 1761-18381
- Lord Mayor, Corporation, etc, London1
- Lucy, Family1
- Macaulay, Thomas Babington, Baron Macaulay1
- Macclesfield, Family1
- Mackintosh, James, Knight, jurist, politician, and historian, 1765-18321
- Malory, Family1
- Mandeville, Family1
- Mara, Family1
- March, Family1
- Marlow, Michael, President of St John's College, Oxford, 1759?-18281
- Marshall, Charles, painter1
- Mash, Thomas B., Comptroller of Accompts, Lord Chamberlaiiz's Department1
- Maxwell-Lyte, Henry Churchill, KCB, Deputy-Keeper of the Public Records1