Fritz Kahn Fritz Kahn Fritz Kahn (29 September 1888 – 14 January 1968) was a German Jewish physician who published popular science books and is known for his illustrations, which pioneered infographics. Fritz Kahn was born in Halle an der Saale, Germany, the son of Arthur Kahn, a physician and author, and Hedwig Kahn, "née" Schmuhl. His father emigrated to the USA shortly after his birth, settling in Hoboken, New Jersey. Around 1893, after establishing his practise, he sent for his wife and son, and Fritz Kahn started school there. The family later moved to Manhattan, but in 1895 his mother returned
Roger Wolfe Kahn November 1925 and Roger in September 1927, aged 19. On 16 August 1926, Time magazine wrote: ""If it is strange that Otto Hermann Kahn, sensitive patron of high art in Manhattan, should have a saxophone-tooting, banjo-plunking, clarinet-wailing, violin-jazzing son, it is stranger still that that son, Roger Wolfe Kahn, has become a truly outstanding jazzer at the perilous age of 18. Roger's ten orchestras, one of which he leads, have netted him some $30,000"". Kahn began studying the violin aged seven and is said to have learned to play eighteen musical instruments before starting to lead his own orchestra in