Constance Winifred Mark, MBE, BEM (née McDonald, previously Goodridge; 21 December 1923 – 3 June 2007) was a Jamaican-born community organiser and activist.

[4][5] Upon completing six months of service, she was promoted to lance corporal[6] and applied for her additional pay as provided for in the British Army regulations.

McDonald viewed the policy as racist, feeling that as she was in a British regiment of the Royal Army Medical Corps (RAMC) she ought to be treated like other such personnel.

After completing a decade of service with the RAMC, McDonald-Goodridge joined her husband with their daughter in England, where she gave birth to their second child, Stanley, in 1957.

In an interview conducted by Jacqui Harper for the BBC programme Hear-Say, Mark expressed her frustration that the service of Black Britons was not known.

She applied for a grant from the Greater London Arts Council and put together an exhibition of photographs that she was able to collect from service personnel and the archives of the Imperial War Museum for the anniversary celebration.

[4][11] In 1993, Mark was notified that the British Government had created a bursary fund honouring Seacole to grant £25,000 annually for nursing leadership studies.

[1][15] Posthumously, a blue plaque, using the traditional spelling MacDonald of her forebear's name, was installed in her honour by the Nubian Jak Community Trust at Mary Seacole House in Hammersmith, former home of Mark.

[16] She was also named by the Evening Standard on a list of 14 "Inspirational black British women throughout history" (alongside Mary Seacole, Claudia Jones, Adelaide Hall, Margaret Busby, Olive Morris, Joan Armatrading, Tessa Sanderson, Doreen Lawrence, Maggie Aderin-Pocock, Sharon White, Malorie Blackman, Diane Abbott and Zadie Smith).