Ramsay MacDonald's religious life was varied, starting as a devout Christian and incrementally moving across his life into organised humanism, particularly the British Ethical movement. MacDonald's father held firm Calvinist beliefs, but as an adult Ramsay would join the Church of Scotland. Subsequently, he became interested in the Unitarian movement during his time in London, and led Unitarian worship sessions. His interest in Unitarianism led him to discover the Ethical Church, an early humanist association affiliated with the Union of Ethical Societies (today known as Humanists UK), which he joined as a member. He regularly attended services at the South Place Ethical Society (now Conway Hall), and became intensely involved in Union of Ethical Societies, and friends with its founder, Stanton Coit. Ramsay would write regularly in Stanton Coit's "Ethical World", a humanist publication. On more than one occasion, he had been elected chair of the Union at its annual meeting, evidencing the significance of his commitment to organised humanism. He was Chair/President of the organisation from 1900-1901 and again in 1903.