About Alex Schomburg
Alexander A. Schomburg, born Alejandro Schomburg y Rosa, was a Puerto Rican commercial artist and comic-book artist and painter whose career lasted over 70 years. Schomburg's first science fiction-themed cover was for the September 1939 issue of Startling Stories. His first recorded comic book work were two covers released the same month, for Daring Mystery Comics #1 and Marvel Mystery Comics #3 (both cover-dated Jan. 1940). During the 1930s, in addition to working for the NSS, Schomburg freelanced with Better Publications, producing interior line art for Thrilling Wonder Stories and other of the company's pulp magazines.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.