Mary Slessor (1848–1915) was a Scottish missionary who dedicated her life to spreading Christianity and improving the lives of the people in Calabar, Nigeria. Born into poverty in Aberdeen, she worked in the mills from a young age to support her family. Inspired by the stories of missionary work in Africa, she left Scotland in 1876 to serve with the United Presbyterian Church. Slessor became known for her courage, living among the Efik people and challenging local customs like infanticide and violence. Her compassion, bravery, and deep faith in Christ made her a significant figure in Christian mission history.

George Müller (1805–1898) was a Christian evangelist and director of orphanages in England, renowned for his strong faith and reliance on prayer. Born in Prussia, Müller led a rebellious youth but experienced a dramatic conversion to Christianity. In 1836, he founded the Ashley Down orphanage in Bristol, England, eventually caring for over 10,000 orphans during his lifetime. What set Müller apart was his refusal to ask for financial support, trusting entirely in prayer to meet the needs of the children. His life of faith, service, and unwavering trust in God’s provision continues to inspire Christians to live with radical dependence on God.

Jim Elliot (1927–1956) was an American missionary whose life and death have inspired countless Christians worldwide. Born in Portland, Oregon, Jim felt called to missionary work from a young age. After attending Wheaton College, he travelled to Ecuador with a team of missionaries to reach the Huaorani people, a remote tribe known for their isolation. In 1956, Jim and four fellow missionaries were killed by members of the tribe they were trying to evangelize. Despite his short life, Jim’s unwavering faith and famous words, “He is no fool who gives what he cannot keep to gain what he cannot lose,” continue to inspire Christians to live courageously for Christ.