Stevenson held the position of Member of Parliament for Harare North from 2000 to 2008. She also served as MDC's national secretary for Policy and Research for both the original MDC and in a smaller faction of the MDC. She was quoted as saying "Mugabe does not frighten me, I feel it is my duty to stand up for the rights of all." Stevenson was the chairperson of the Combined Harare Residents Association, and led the organisation's Supreme Court request for municipal elections in the city following the dissolution of the Harare City Council by the Ministry for Local Government due to corruption. The government-appointed city commissioners, initially appointed for a period of six months, were still in place two years later. The approach was successful, however before elections could be organised, President Mugabe declared that the city elections would be held simultaneously with the 2002 presidential elections. As a result of the short time frame for preparations the elections were chaotic and many eligible voters were not able to vote. Nevertheless the organisation considered their actions a success as they had forced the government to approve elections in the city. In 2005 Stevenson and several supporters left the MDC due to the increasingly violent tactics of Morgan Tsvangirai, the movement's leader and founder. She joined a breakaway faction led by former student activist Arthur Mutambara. In July 2006, after attending a political meeting in the Harare suburb of Mabvuku, Stevenson and four political colleagues were attacked by a mob. Stevenson suffered panga wounds to the back of her neck and head, broken arm and wrist bones and a fractured cheek bone. The leadership of the rival faction of the MDC immediately claimed that the attack was carried out by ZANU militants. However, while recovering in the hospital, Stevenson positively identified her assailants as members of the MDC-T faction, led by Tsvangirai. Timothy Mubawu, a MDC Member of Parliament, was later charged with organising the attack.
Later career and death
In 2009, Stevenson was appointed as Zimbabwean Ambassador to Senegal and The Gambia, and was responsible for re-opening Zimbabwe's embassy in Senegal. She held the post even after the fall of the inclusive government in 2013. Stevenson was found dead by her chauffeur at her Dakar, Senegal residence on 24 August 2018.
Personal Life
Stevenson was the daughter of First Lieutenant Gilbert Hasbrouck Bevier Jr., who was born in Kingston, New York and died suspiciously of a gunshot wound in Seoul, South Korea. He enlisted in the United States Army Air Force in May 1942, while a freshman at Rutgers University, and served during World War II. He was a descendant of seven of the New Paltz, New York patentees, or founders, including Louis DuBois. Her mother was Ann Elizabeth Jarrell of Georgia. She had a brother, Frank Hasbrouck Bevier. In July 1965, she married Stuart Robert Stevenson, of Hailsham, England, in Surrey, England. They had three children: Neil Robert, Catherine Bevier and Alexander Graham Stevenson.