List of Famous people who born in 1903

Dame Kathleen Lonsdale was an Irish pacifist, prison reformer and crystallographer. She proved, in 1929, that the benzene ring is flat by using X-ray diffraction methods to elucidate the structure of hexamethylbenzene. She was the first to use Fourier spectral methods while solving the structure of hexachlorobenzene in 1931. During her career she attained several firsts for female scientists, including being one of the first two women elected a Fellow of the Royal Society (FRS) in 1945, first woman tenured professor at University College London, first woman president of the International Union of Crystallography, and first woman president of the British Association for the Advancement of Science.

Jorge Basadre was a Peruvian historian known for his extensive publications about the independent history of his country. He served during two different administrations as Minister of Education and was also director of the Peruvian National Library.

Vittorio Giannini was a neoromantic American composer of operas, songs, symphonies, and band works.

Pál Kadosa was a pianist and Hungarian composer of the post-Bartók generation. His early style was influenced by Hungarian folklore while his later works were more toward Hindemith and expressively forceful idioms. He was born in Levice. He studied at the national Hungarian Royal Academy of Music under Zoltán Székely and Zoltán Kodály. He was appointed to the faculty of the Fodor School in 1927 where he taught until 1943 when he was forced out due to wartime political issues.