[1] Belsky was born on 20 June 1919 in Wareham, Dorset to Albert Edward Owen and Margaret Constance Davies-Bunton.
[1] It was at the Royal College of Art that she met her future husband, Czech exile and sculptor, Franta Belsky.
Franta introduced her work to editors he knew at the magazine Lilliput, where Belsky became a regular contributor.
[3] In 1944, Margaret and Franta married, with Belsky taking on her husband's name for her single word signature, disguising her gender.
When the Daily Herald, later The Sun, was taken over by Rupert Murdoch in 1969, Belsky refused to work for him.