Name
- Howard, Henry Granville, 14th Duke of Norfolk, politician, 1815-18601
- Howard, Henry, 15th Duke of Norfolk, courtier, 1847-19171
- Howard, Joseph Jackson, genealogical writer1
- Huddleston, William, of Sawston1
- Hughes, Alfred Thomas, vicar of Llancarvan1
- Hungerford, Family1
- Huntley, Family1
- Husenbeth, Frederick Charles, vicar-general of Northampton1
- Iolo Goch1
- Jenkins, Robert Charles, Canon of Canterbury1
- Jernegan, Family1
- Jerningham, Hubert Edward Henry, MP; KCMG 18931
- Jestyn ap Gwrgan1
- Johnson, W- A-, Canon; DD1
- Jones, Family1
- Jones, Philip, of Add MS 371401
- Jones-Stafford, Henry F- J-, of Clifton1
- Jowett, Benjamin, Master of Balliol College Oxford, 1817-18931
- Kemys, Family1
- Kett, George1