Name
- Héricart de Thury, Louis Étienne Francois, Vicomte, engineer1
- Inwards, Richard, mining-manager1
- Irvine, Robert, analytical chemist, of Edinburgh1
- Irving, Alexander, Reverend; of Wellington College, county Berkshire1
- Jackson, Benjamin Daydon, botanist1
- Jackson, John Hughlings, physician1
- Jackson, Julian al. John Richard, Colonel; formerly of the Imperial Russian Staff; Secretary, Royal Geographical Society, d 18531
- Jameson, Hampden Gumey, botanist1
- Jameson, Robert, Regius Professor of Natural History, Edinburgh1
- Jardine, William, 7th Baronet, naturalist1
- Jeffreys, John Gwyn, conchologist1
- Jeffs, Osmund W., geologist1
- Jenner, William, 1st Baronet, President of the Royal College of Physicians1
- Jervis, Guglielmo al. William Paget, of the Regio Museo Industriale, Turin1
- Johnson, Matthew Hawkins, sculptor, 1831-19091
- Jones, Thomas Rupert, geologist1
- Judd, John Wesley, geologist, 1840-1916, http://isni.org/isni/000000... http://viaf.org/viaf/352284021
- Jukes Browne, Alfred John, geologist1
- Jukes, Joseph Beete, geologist1
- Karrer, Felix, Austrian geologist1