The Team Margot Foundation was set up in 2014 in memory of two year old Margo Martini who died from Leukaemia.
Margot needed a bone marrow transplant, but her mixed heritage meant it wasn't possible find a 'perfect' match.
People from these communities are most disadvantaged when it comes to seeking a donor with a matching tissue type.
Just 3% of registered bone marrow donors mixed race.
There must be 10-12 matching genetic markers for the transplant to be successful, and these are dictated by race.