[2] Malcolm served as junior editorial secretary of the YWCA[3] which, in the early twentieth century, conducted global research to find those organisations that "gave best results for girls from 13.5 years of age to 19".
The research identified the Girl Guides as being "unique in this respect"[4] and the YWCA subsequently became closely involved with the Girl Guide movement in its early years, with Malcolm and Marion Dashwood taking the lead.
[6] Around the same time she encouraged Lady Alice Behrens to get involved with Guiding in Manchester.
[4] By 1915 she was national commissioner of the YWCA section of Girl Guides, a position she held until at least 1918.
[12][13] A memorial service for Malcolm was held at St Simon Zelotes, London.