Name
- Grey, Edward, 1st Viscount Grey of Fallodon, politician and statesman, 1862-19331
- Grey, Leonard, Viscount Graney, Lord Deputy of Ireland1
- Gruffudd Llwyd ap Dafydd ap Einion Llygliw, poet, fl 1380-14101
- Gwalchmai ap Meilyr, court poet, fl 1130-11801
- Gwynfardd Brycheiniog, poet, fl 11801
- Hackett, Philip, Dean of Waterford, fl 16871
- Hadley, Patrick Arthur Sheldon, composer, 1899-1973, http://isni.org/isni/000000...1
- Hammond Organ Company, of Chicago, 1937-19851
- Harley, Henrietta Cavendish, Countess of Oxford and Mortimer, née Holles, patron of architecture, 4 Feb 1694-9 Dec 1755, http://isni.org/isni/000000... http://viaf.org/viaf/60455631
- Hartrey, Malachy1
- Harvey, F C, private secretary to Elizabeth, Queen Consort of George VI, fl 1930-19501
- Hennessey, James, of Knock Raffon1
- Hennessy, William Maunsell, Irish scholar1
- Herbert, Earl of Powis1
- Herbert, Morgan, of Add MS 148831
- Herbert-Cooper, Nan Ino, Baroness Lucas of Crudwell and Baroness Dingwall1
- Holy Cross Abbey, Tipperary1
- Housman, Laurence, author and art critic, 1865-19591
- Howard, Henry, 6th Duke of Norfolk, 1628-16841
- Howard, Thomas, 2nd Earl of Arundel1