Nilsson was born in Södra Säms in 1872. She was brought up in a farmhouse. Her father who helped to run the cottage textile workers died when she was thirteen and she went to live in Stockholm.[1] In 1891 she was one of the first women to take medical training, initially in Uppsala and mainly in Stockholm. She met Lydia Wahlström and Alma Sundquist who were pioneers, too.[1]
Nilsson and Julia Kinberg, another physician, founded a feminist organizetion, Frisinnade Kvinnor, in 1914.[2] She was a member of the Liberal Women's National Association.[3]
The magazine Tidevarvet was founded in 1923[4][5] by Kerstin Hesselgren, Honorine Hermelin, who was an educator, Ada Nilsson, Elisabeth Tamm, a liberal politician, and Elin Wägner, who was an author.[6][7] The founders who had a liberal political stance[7] were known as the Fogelstad group. Nilsson was one of the principal funders of the project and became editor-in-chief with her new friend Elin Wägner as its first editor. The magazine was to publish until 1936 and for three years (1925-28) the magazine ran a free consultancy but it was difficult to fund.[1]
Death and private life
Nilsson had a very close relationship with Honorine Hermelin. During the last year of her life Nilsson went to stay at Fogelstad with Hermelin.[8] Nilsson died in Шаблон:Ill. She was near blind and poor. She was buried in a cemetery near her birthplace.[1] Her life is one of those celebrated in Stockholm's Östermalmstorg metro station by Siri Derkert.[1]