Ferdinand Karl Franz Schwarzmann, Ritter von Hebra (1816-1880) was an Austrian physician and dermatologist. Founder New Vienna School of Dermatology
Eduard Heinrich Henoch (1820 – 1910) was a German Paediatrician. Student of Johann Lukas Schönlein, he extended the clinical features of childhood purpura and is eponymously affiliated with Henoch-Schönlein Purpura
John Addison Fordyce (1858 –1925) was an American dermatologist. Eponymously affiliated with Fox–Fordyce disease
Fox–Fordyce disease: A chronic itchy papular condition occurring in areas of the skin with apocrine glands especially the axilla of young women.
George Henry Fox (1846 – 1937) was an American dermatologist. Eponymously affiliated with Fox–Fordyce disease (and not Fox's sign)