Final answer:
F. Scott Fitzgerald is the writer born in St. Paul, Minnesota. He is known for his portrayal of the Jazz Age, with 'The Great Gatsby' being one of his most famous works.
Step-by-step explanation:
The writer who was born in St. Paul, Minnesota is F. Scott Fitzgerald. Fitzgerald is known for his vivid depictions of the Jazz Age (the 1920s), especially in works like The Great Gatsby. Raised in an upper-middle-class family, he was named after his distant cousin Francis Scott Key, but was known as Scott. His novels reflect the lives and moralities of the post-World War I generation, and he is considered a member of the 'Lost Generation' of the 1920s.