Frederic Arnold Kummer, Jr. (1913-1990) US author, son of Frederic Arnold Kummer, Sr, who sometimes varied his first name, also spelling it Frederick or Fredric; he published at least one story as by Martin Vaeh. Kummer began to publish work of genre interest with "The Medici Cup" in The Evening Standard Book of Strange Stories (anth 1934), edited anonymously; as an sf author, his career was short, with a few stories before 1939, at least sixteen that year, eighteen in 1940, and a few over the next half decade. Venues included Amazing Stories, Astounding Science-Fiction, Fantastic Adventures, Planet Stories, Thrilling Wonder Stories and Weird Tales. He specialized in briskly-told Space Operas and Planetary Romances fresh from the 1930s SF Megatext, and after he stopped publishing fell into obscurity as far as the sf field was concerned.