Name
- Horstius, Gregorius, MD, the Elder3
- Hort, Josiah, Bishop of Ferns, afterwards Bishop of Kilmore and Ardagh, and Archbishop of Tuam3
- Hoskins, John, 2nd Baronet, Secretary and Vice-President of the Royal Society3
- Houstoun, Robert, MD3
- Howland, EIizabeth3
- Hulse, Edward, 1st Baronet, MD3
- Humfreys, Orlando, 2nd Baronet3
- Hunt, Henry, of Gresham College3
- Hutchinson, Francis, Bishop of Down and Connor3
- Hyde, Edward, 1st Earl of Clarendon, 1609-16743
- Hyde, Henry, 2nd Earl of Clarendon3
- Inglis, John, of Sloane MS 40463
- Jago, George, Divinity Lecturer at Looe, county Cornwall, afterwards Vicar of Harberton and Halwell, county Devon, d 17263
- Jallabert, Jean, MD, of Geneva3
- Jones, Roger, MD, of Chester3
- Keill, John, MD, Professor of Astronomy at Oxford3
- Kelley, Edward, Alchemist3
- Kellum, Robert3
- King, Edmund, MD, Physician to Chas. II3
- Knowlton, Thomas, of Sloane MS 40503