Name
- Griffiths, Ralph, editor and publisher, c 1720-18031
- Gronovius, Johannes Fredericus, Botanist1
- Groummert, -, correspondent of Emmanuel Mendez da Costa, fl 17651
- Gruner, Gottlieb Sigmund, archivist, naturalist, notary and lawyer, 1717-17781
- Grynaeus, Simon, of Basel, clergyman and translator, 1725-17991
- Guettard, Jean-Étienne, naturalist and mineralogist, 1715-17861
- Gumpertz, Aaron S, physician and correspondent of Emmanuel Mendez da Costa, fl 1752-17671
- Kalmar, George1
- Keir, Dr1
- Klein, Jacob Friedrich Tilsit1
- Knowlton, Thomas, Naturalist1
- Kynaston, Roger, of Add MS 285391
- La Maltiére, Chevalier1
- Lang, François Marie, MD, of Lucerne1
- Lauraguais, Louis Léon Félicité, Comte, Duke de Brancas1
- Lawton, Charlwood, of Derby1
- Le Cat, Claude Nicolas1
- Le Maignen of Rouen1
- Lee, Arthur, MD, FRS1
- Lesser, Friedrich Christian1