Complex sentence: Fascinated by the comics since childhood, Gould quickly found work as a cartoonist and was hired by the William Randolph Hearst's Chicago Evening American newspaper for whom he produced his first comic strips "Fillum Fables" beginning in 1924 and "The Radio Catts".
Split into simpler sentences: Fascinated by the comics since childhood, Gould quickly found work as a cartoonist. He was hired by William Randolph Hearst's "Chicago Evening American" newspaper, where he produced his first comic strips, "Fillum Fables" (1924) and "The Radio Catts".