Question: Who attended College of West Africa and is the first elected female head of state in Africa?

Context paragraphs:
Marianne Matichuk: Marianne Matichuk is a Canadian politician, who was elected mayor of Greater Sudbury, Ontario in the 2010 municipal election.  She was the city's first elected female mayor, although Grace Hartman was previously appointed mayor following the death of Max Silverman in 1966.

Ellen Johnson Sirleaf: Ellen Johnson Sirleaf (born 29 October 1938) is a Liberian politician who serves as the 24th and current President of Liberia since 2006.  Sirleaf is the first elected female head of state in Africa.

College of West Africa: The College of West Africa is a Methodist high school in Monrovia, Liberia.  The school was opened in 1839 (as the "Monrovia Seminary"), making it one of the oldest European-style schools in Africa.  It has produced many of Liberia's leaders and includes among its alumni Liberian President Ellen Johnson Sirleaf, the first woman elected as president in an African state, and Liberian Vice President Joseph Boakai.

Gertrud Månsson: Gertrud Carolina Månsson (18 December 1866 – 30 December 1935), was a Swedish municipal politician (Social democrat).  She was the first female member in the Stockholm City Council, and also the first elected female politician of her country as a whole (1910).

Ella Koblo Gulama: Ella Koblo Gulama (26 January 1921 – 10 September 2006) was a Sierra Leonean paramount chief and politician.  In 1957, she became the first elected female Member of Parliament in Sierra Leone and all of Sub-Saharan Africa.  She was re-elected in 1962.  During the government of Milton Margai, Gulama became Sierra Leone and sub-Saharan Africa's first female Cabinet Minister.

Miss West Africa: Miss West Africa is an international beauty pageant started in 2008 for females living in West Africa, as well as women of West African origin living around the world.  Entry is via regional Miss West Africa competitions, with the winner of each contest then competing at the Miss West Africa Final.  The first 2 competitions were held in London, and the event was held in Africa for the first time in the Gambia at the 2011 competition on 18 December 2011, which was won by Vanny Reis of Cape Verde.

Virginia Klinekole: Virginia Shanta Klinekole (June 13, 1924 – March 13, 2011), born Virginia Shanta, was a Mescalero Apache politician from New Mexico.  She was elected as the first woman president of the Mescalero Apache Tribe, and served on the Tribal Council for nearly 30 years.  She was known for being the first elected female leader of a major tribe, and for her work in preserving the Apache language.

United Kingdom general election, 1979: The United Kingdom general election of 1979 was held on 3 May 1979 to elect 635 members to the British House of Commons.  The Conservative Party, led by Margaret Thatcher, ousted the incumbent Labour government of James Callaghan with a parliamentary majority of 43 seats.  The election was the first of four consecutive election victories for the Conservative Party, and Thatcher became the United Kingdom's and Europe's first elected female head of government.

Annie White Baxter: Annie White Baxter (March 2, 1864 – June 28, 1944) was a Missouri politician.  At her election as county clerk of Jasper County, Missouri in 1890, she became the first elected female office-holder in the state, as well as the first female county clerk in the United States.

Adeline Molamure: Adeline Molamure, CBE (Adeline; "née" Meedeniya) was the first female member of State Council of Ceylon, and therefore, the first elected female legislator in Sri Lanka.  She was the Deputy President of the Senate.

Supporting paragraphs: College of West Africa Ellen Johnson Sirleaf
Answer: Ellen Johnson Sirleaf