David Seymour "Chim"

David Seymour, also known by the pseudonym Chim, born in 1911 in Warsaw, was a photographer and co-founder of the Magnum agency. 

In 1933, he began his career working for Regards magazine, which was close to the Popular Front. In Paris, he met Robert Capa, Gerda Taro and Henri Cartier-Bresson. 

He covered the Spanish Civil War alongside the Spanish Republicans and returned to Paris in 1939, from where he left for Mexico to work with exiles who had settled there after the fall of the Republic and the victory of the Spanish Nationalists led by Franco. 

When World War II broke out, he was in New York. In 1940, he enlisted in the United States Army, where he served as a photographer and interpreter until 1945. 

After the war, he reported for UNESCO on children in Czechoslovakia, Poland, Germany, Greece and Italy. The result of his work was published in 1949 under the title Children of Europe. 

In 1947, together with Robert Capa, Henri Cartier-Bresson and George Rodger, he founded the Magnum agency. 

After Capa's death in 1954, he became president of Magnum, a position he held until his death in 1956 while covering the Suez Crisis.