Ms Marson was already an experienced writer and journalist when she joined the BBC in 1939.
His first role in the company was working at the Alexandra Palace television studios.
When war broke out and the BBC’s television services were closed, she transferred to radio to work both behind the scenes and on air.
Ms. Marson then joined full-time as a Program Assistant in the “Empire Programs” department, where her interest in poetry led her to elevate Caribbean authors.
She also broadcast messages from servicemen in England to their friends and families in the Caribbean, in her popular weekly series: Calling the West Indies.
In 2009 a blue plaque was unveiled at his former home in Brunswick Square in Camberwell.
The council said the community chose the library’s name to “honor Southwark’s rich cultural tradition”.
Mr Williams said: “We are also opening the doors to another haven for our community – a place to relax, learn, meet and be inspired, whether you are one year old or 91.
He also described it as an “important step” in the redevelopment of the Aylesbury area.