Name
- Heinsius, Anthonie, Grand Pensionary of Holland1
- Heisler, François Joseph, Comte1
- Henningh, Secretary to Lord Portland1
- Heuckelom, W-1
- Hill, Thomas, of Egerton MS 17081
- Hofman, Willem, Schoolmaster, of Dordrecht1
- Holles, Thomas Pelham-, Duke of Newcastle, prime minister, 1693-17681
- Hompesch, Vincent Willem, Baron1
- Homrigh, B-, Revenue Commissioner in Ireland1
- Hop, Cornelis, of Amsterdam; Dutch Ambassador to France1
- Hunt, Maddison1
- Hænichen, -, correspondent of William Bentick, 1st Count Bentick, fl 1750-17591
- Innocent XI, Pope1
- John George II, Prince of Anhalt-Dessau1
- Jurieu, Pierre, of Add MS 289161
- Keppel, Arnold Joost van, 1st Earl of Albemarle1
- King, Gregory, Deputy Garter King-at-Arms1
- Kinschot, Jan Anthoni1
- Kloot, Severyn van der, Merchant, of Rotterdam1
- Kloot, Wouter van der, Merchant, of Rotterdam1