Kellogg attended and dropped out of the University of California, Berkeley before going to San Francisco to pursue a career in writing.
She later received a job with Salute Magazine, where she was sent to write about the aftermath of World War II in France and Spain.
[1] She relocated to New York City, where she worked in various agencies as a social worker, which she credited as her inspiration for the characters in her books, plays and films.
[2] In 1968, Kellogg published Tell Me That You Love Me, Junie Moon, her first novel and most famous work, and two years later, she wrote the screenplay for the film adaptation.
[citation needed] Kellogg died from complications of Alzheimer's disease in 2005, aged 83, at her home in Santa Barbara.