John Lidell Cay FRSE PRSSA (31 August 1790 – 13 December 1865) was a Scottish advocate, pioneer photographer and antiquarian. He served as the Sheriff of Linlithgowshire 1822–65. He was the maternal uncle of James Clerk Maxwell.

Overview

John Lidell Cay FRSE PRSSA (31 August 1790 – 13 December 1865) was a Scottish advocate, pioneer photographer and antiquarian. He served as the Sheriff of Linlithgowshire 1822–65. He was the maternal uncle of James Clerk Maxwell. He was an original member of the Edinburgh Calotype Club, one of the world's first photographic clubs (1843), and a keen early photographer alongside his friend Sir David Brewster and the Edinburgh pioneers David Octavius Hill and Robert Adamson. He made very early photographic presentations to the Royal Scottish Society of Arts. Life He was born in the family home on George Street in Edinburgh on 31 August 1790, the son of Robert Hodshon Cay LLD (1758–1810) of North Charlton who was Judge Admiral of Scotland, and his wife Elizabeth Liddell (1770–1831) a relatively famous pastellist, and pupil of Archibald Skirving. He was educated at the High School in Edinburgh then studied law at the University of Edinburgh. He was admitted to the Scottish Bar as an advocate in 1812.

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