Following the closure of 'The Dawn', Louisa Lawson's health began to decline. The years of hard work and stress had taken a toll on her physical and emotional well-being.

Despite her declining health, Louisa Lawson remained interested in social issues and continued to advocate for women's rights and other causes whenever possible.

Louisa Lawson passed away in Gladesville, New South Wales, at the age of 72. Her death marked the end of an era for the women's movement in Australia. She had been admitted to the Gladesville Mental Hospital where she died. She was interred in the Church of England section of Rookwood Cemetery.