Sonia Mary Biddlecombe, a name that would later be transformed into Graham, emerged into the world in the quaint town of Croydon, a place that would forever hold a special significance in her life, in the year 1929. As a youthful sixteen-year-old, she was bestowed with a distinguished scholarship to the renowned Guildhall School of Music and Drama, situated in the bustling metropolis of London, a city that would serve as the backdrop for the commencement of her remarkable journey in the world of theatre.
Graham's early professional journey led her to a diverse array of repertory theatres scattered across the country, with notable stops including the esteemed theatres of Preston, Farnham, Leatherhead, and Wolverhampton. Her remarkable range and exceptional talent soon captured the attention of the illustrious Old Vic, a celebrated theatre company in the heart of London, which extended an invitation for her to join their prestigious ranks. Subsequently, she embarked on a thrilling tour of South Africa with the Old Vic, thereby further cementing her reputation as a gifted and adaptable performer, renowned for her remarkable abilities and versatility.
Graham's appearances in London were remarkably numerous and multifaceted, with stand-out roles in various productions, including the esteemed "The Duenna" and the principal girl in the Players Theatre's captivating pantomime, "Beauty and the Beast", a mesmerizing spectacle that showcased her remarkable talent. Her unforgettable performance in the Aldwych Theatre's "Meet Me By Moonlight" triggered a surge of television and revue engagements, solidifying her position as a rising star in the realm of entertainment, marked by a growing reputation for excellence and a promise of great things to come.
