Which editor worked closely with Fitzgerald at Scribner's?

The editor who worked closely with Fitzgerald at Scribner’s was Maxwell Perkins. Perkins became Fitzgerald’s principal editor and a trusted friend, helping shape several of the writer’s most important books.

Perkins joined Charles Scribner’s Sons in 1910 and became known for identifying promising younger writers. He championed Fitzgerald’s early novel, originally titled The Romantic Egotist, even after other people at the firm rejected it. Revised and published as This Side of Paradise in 1920, the book launched Fitzgerald’s literary career.

Perkins also edited The Beautiful and Damned, The Great Gatsby, and Tender Is the Night. His editorial criticism was especially important during the development of The Great Gatsby, whose structure and prose Fitzgerald revised extensively. Perkins supported Fitzgerald financially and personally during periods of debt, illness, and heavy drinking.

The wrong options are notable writers associated with Fitzgerald or Perkins, which makes the question easy to confuse. Perkins also edited Ernest Hemingway and Thomas Wolfe, but neither was Fitzgerald’s close Scribner’s editor. Fitzgerald’s correspondence with Perkins is preserved in the volume Dear Scott, Dear Max.