From an interview with Gaynor Arnold

As a working-class girl from Cardiff, she knew more about that world than many of her contemporaries. She was brought up in a rented Victorian house, an only child living with grandparents as well as parents. Her mother and father were both shop assistants for local grocers. ‘My dad used to bone sides of bacon,’ she recalls. ‘He died when I was 11, giving me the opportunity to feel sorry for myself as a semi-orphan. Around that time, I first read David Copperfield and immediately identified with the lone child hero.’

It was the most autobiographical of Dickens’s novels, and Girl in a Blue Dress is another fictional take on an aspect of his life, albeit under the name of Alfred Gibson and set in the period immediately after his funeral. The central figure is his wife, Dorothea Gibson—alias Catherine Dickens—who is neither invited to the funeral nor favoured in the will. By the time of Dickens’s death, aged 58, they had been separated (though not divorced) for 12 years. She had been given a home and an income, while the famous writer kept their 10 children and had more time to spend with his much younger mistress.

—Interview from The Guardian, 13 August 2008