Dr Archibald Gordon MacGregor MC FRSE FGS (1894-19 December 1986) was a 20th century geologist of Scots descent. He was Assistant Director of the British Geological Survey. Friends knew him as Archie MacGregor.
He was born in Halifax, Nova Scotia the son of James Gordon MacGregor, a geologist who spent time in both Scotland and Nova Scotia. The family returned to Edinburgh in 1901, living at 6 Chalmers Crescent in The Grange.
His life, as many others, was disrupted by World War I during which he was commissioned as a 2nd Lieutenant in the Royal Engineers (Signals Division), seeing service in France and Germany and being demobbed in 1919. He won the Military Cross during the Battle of the Lys in April 1918. He graduated with a BSc in science in 1921.
In 1921 he began working as a geologist for HM Geological Survey. He stayed there for his entire career, becoming District Geologist in 1945, covering the Scottish Highlands. He became Assistant Director in 1952.
In 1932 he was elected a Fellow of the Royal Society of Edinburgh. His proposers were Sir John Smith Flett, Thomas James Jehu, Murray Macgregor, James Ernest Richey, Charles Glover Barkla. In 1936 he accompanied Dr C F Powell on an expedition to Montserrat.
- Signals from the Great War
- Problems of Carboniferous-Permian Volcanicity in Scotland (1948)
- Edinburgh and Leith Post Office Directory 1902-3
- Signals from the Great War: A G MacGregor
- Biographical Index of Former Fellows of the Royal Society of Edinburgh 1783–2002 (PDF). The Royal Society of Edinburgh. July 2006. ISBN 0 902 198 84 X. Archived from the original (PDF) on 2016-03-04. Retrieved 2017-07-03.
- "1936 Royal Society expedition to Montserrat | Volcanoes | Discovering Geology | British Geological Survey (BGS)". www.bgs.ac.uk. Retrieved 2019-05-28.
- "Edinburgh Geological Society". www.edinburghgeolsoc.org. Retrieved 2019-05-28.