Catherine Mulgrave
Catherine Elisabeth Mulgrave also Gewe (19 November 1827 ─ 14 January 1891) was an Angolan-born Jamaican Moravian pioneer educator, administrator and missionary who accompanied a group of 24 Caribbean mission recruits from Jamaica and Antigua and arrived in the Danish Protectorate of Christiansborg, now Osu, Accra in Ghana in 1843. Mulgrave was a leading figure in pedagogy and the education programme for girls in both Jamaica and on the Gold Coast. She was the Basel Mission’s first female teacher active on the Gold Coast. Under the auspices of the society, she played a pioneering role in the Christian women ministry of the Protestant movement in colonial Ghana. Catherine Mulgrave was also one of the first African woman teachers in the missionary educationalist system in Africa.
Catherine Christian
Catherine Christian was born on 22 June 1901 in Chelsea, London, England, the daughter of a German father, Christian John Mühlenkamp, and an English mother, Catherine Harriett (née Ellett, born in Wandsworth in 1873). Christian and Catherine had married in Wandsworth in 1899. 
Her birth was registered as Mamie Muhlenkamp, but the family may have changed their surname during World War I. There is no legal evidence for this name change and Mamie remained "Mulenkamp" in her school records, although later became known as Catherine Mary Christian.