William Derham - natural philosopher

William Derham, an English clergyman and natural philosopher, died 230 years ago today. He was best known for his works on natural theology - trying to marry science with Christian ideology - and his early calculations of the speed of sound. Though not a diarist, he did keep weather records, moreover, he published commentaries on ‘meteorological diaries’ from as far afield as Naples and Bengal.

Derham was born in 1657 in Stoulton, Worcestershire. He showed an aptitude for learning from a young age, and was educated at Blockley Grammar School before entering Trinity College, Oxford, in 1675. He was ordained in 1681, and the following year became vicar of Wargrave, Berkshire, and from 1689 to 1735 he was Rector at Upminster, Essex. While at Upminster, in 1716, he became a Canon of Windsor - the vestry minutes show that thereafter he divided his time between those two places. His tenure at Upminster saw improvements to the church and its surroundings, and he was noted for his diligence in both pastoral and scholarly duties. 

Derham was deeply interested in natural philosophy and science. In 1696, he published his Artificial Clockmaker, which went through several editions. In 1703, he was elected a fellow of the Royal Society. In 1713, he published Physico-Theology: or, a Demonstration of the being and attributes of God, from his works of creation (freely available to read at Googlebooks). This was widely read and translated into several languages. Similar books followed: Astro-theology (1714) and Christo-theology (1730) followed. 

One of Derham’s most significant scientific contributions was to calculate the speed of sound by measuring the time lapse between the flash and report of distant cannon fire. He edited and published some of the posthumous works of Robert Hooke, helping to cement Hooke’s legacy as a pioneering scientist. Derham also studied insects and birds and corresponded with leading intellectuals of the age, including Sir Isaac Newton.

Although Derham married and had a family, few details of his personal life have survived time. In Upminster, he was known for his hospitality and engagement with scientific and theological discussions. He died on 5 April 1735. His writings, particularly in natural theology, would later be cited by thinkers such as William Paley, forming part of the intellectual groundwork for discussions on design in nature. His careful empirical studies and theological reflections positioned him as a bridge between the worlds of faith and emerging science in the early 18th century. See Wikipedia and the Barking and District Historical Society for further information.

Although there is no evidence that Derham was a diarist, he did leave behind his own weather records (see The Royal Society for images) as well as commentaries on the ‘meteorological diaries’ of others, such as this one with ‘diaries’ from Naples, Bengal and Christiana in 1727.