Johannes Theodor Schmalhausen, a botanist known for his study of East European plants
Johannes Vermeer | Johannes Kepler | Johannes Gutenberg | Theodor Fontane | Theodor Mommsen | Johannes Peter Müller | Johannes Ockeghem | Johannes Rau | Theodor Herzl | Carl Theodor Dreyer | Johannes Müller | Johannes Heesters | Thomas Theodor Heine | Theodor Boveri | Johannes Zukertort | Johannes Meursius | Cornelis Johannes van Houten | Theodor Meynert | Johannes Meyer | Johannes Itten | Johannes Blaskowitz | Theodor Storm | Theodor Loos | Theodor Leschetizky | Theodor Kittelsen | Theodor Eimer | Johannes von Lahnstein | Johannes Mötsch | Johannes Hevelius | Johannes Ciconia |