Rowallane, County Down
Naomi McBride
E. M. Kirkpatrick
Jack Crabtree (b. Rochdale 1938)
James Henry Lynch (fl.1815 - 1865)
Alphonse Du Breuil (1811-1858)
Ernest Henry Wilson (1876 - 1930)
Leonard Cockayne (1855-1934)
Hugh Annesley, 5th Earl Annesley (1831-1908)
Royal Horticultural Society of Ireland
Ludwig Schröter
Percy Stephen Cane (c.1881 - 1976)