Mary Gibson was born and brought up in Bermondsey, south east London. In 2009, after a thirty-year career in publishing, she took the opportunity of early retirement to write a book of her own! The result was her début novel, Custard Tarts and Broken Hearts, which was inspired by the lives and times of her grandparents in World War One Bermondsey. The novel went on to become a top ten Kindle best seller and has been selected as one of twenty titles for World Book Night 2015.

Her second novel, Jam and Roses, about three sisters living in the Dockhead area of Bermondsey during the 1920s, was published in paperback in May 2015, having been a Nielsen Top 20 hardback bestseller and a kindle top 20 bestseller. Her third novel Gunner Girls and Fighter Boys which is set in Bermondsey during World War Two, was published 2015. Her fourth novel, Bourbon Creams and Tattered Dreams, set in Bermondsey during the 1930s, was published in November 2017.

Over 300, 000 copies of Mary's books have been sold to date. She now lives in Kent and is writing her fifth Bermondsey novel.