In addition to her teaching activities in Karlskrona, she strongly supported the suffrage movement, contributing articles to magazines, publishing brochures and speaking at meetings.
[1] From 1890, Kruse devoted her entire professional life to teaching at the Fischerströmska girls' school in Karlskrona.
[5] In addition to her teaching activities, she wrote several informative books for children and young people including Från vår storhetstid: historiska berättelser för ungdom (From our Glorious Past: Historical Stories for Young People, 1890).
She also contributed articles to magazines such as Idun and Rösträtt för kvinnor, the latter published by the National Association for Women's Suffrage (LKPR).
These included Kvinnan och samhällsarbetet (Women and Social Work, 1905) and Varför böra de svenska kvinnorna skriva sina namn på L.K.P.R:s opinionslistor?