William Preston (7 August 1742 – 1 April 1818) was a Scottish author, editor and lecturer, born in Edinburgh. After attending school and college he became secretary to the linguist Thomas Ruddiman, who became his guardian on the death of his father. On the death of Thomas, Preston became a printer for Walter Ruddiman, Thomas' brother. In 1760 he moved to London and started a distinguished career with the printer William Strahan. He became a Freemason, instituting a system of lectures of instruction, and publishing Illustrations of Masonry, which ran to several editions. It was under Preston that the Lodge of Antiquity seceded from the Moderns Grand Lodge to become "The Grand Lodge of All England South of the River Trent" for ten years. He died on 1 April 1818, after a long illness, and was buried in St Paul's Cathedral. Early life Preston was a born in Edinburgh, on 7 August 1742. His father, also William Preston, was a Writer to the Signet, a form of solicitor. His second, and only surviving child, was encouraged in Classical studies, entering the Royal High School, Edinburgh at six, where he shone in Latin, and would also have studied Greek. He continued his classical studies at college, before becoming secretary to Thomas Ruddiman, a classical scholar whose blindness now necessitated such help. Meanwhile, Preston senior's health and fortunes declined, due to bad investments and supporting the wrong side in the 1745 rebellion. On his death, in 1751, Ruddiman became young William's guardian. He was apprenticed to the printer, Walter Ruddiman, Thomas' brother, but until Thomas' death in 1757 spent most of his time reading to him, and transcribing and copy-editing his work. In 1760, furnished with letters of introduction by Ruddiman, Preston arrived in London, where he took employment with William Strahan, later to become the King's Printer, and a former pupil of the same school as Preston. Here he would spend his professional life as an editor, earning the respect of writers such as David Hume and Edward Gibbon. Freemasonry Shortly after Preston's arrival in London, a group of Edinburgh Freemasons living in the English capital decided to form themselves into a lodge. The Grand Lodge of Scotland felt they could not grant them a constitution, as they recognised the jurisdiction of the Antient's Grand Lodge in the capital. They were accordingly constituted as Lodge no. 111 at the "White Hart"