 She was a member of the Stockholm city council in 1910–1915 and 1919–1931.During her first term, she was a delegate of the poor care board's bureau for the handling of social benefit in 1912-15 and 1920–30; member of the board of the Stockholm city's house of correction for girls in 1912-16; a member of the poor care board for social benefit housing in 1917.Because the members of the city councils received no salary, Månsson was forced to retract her candidature in the 1915 election because she experienced difficulties in handling both her political assignments as well as the shop by which she supporter herself, but she accepted a nomination to be a candidate in the 1919 election, in which she was re-elected