Ernest William Henderson Cruickshank FRSE LLD (22 March 1888 – 29 December 1964) was a Scottish physician and physiologist.
He was educated at Robert Gordon's College and studied medicine at Aberdeen University graduating MB ChB in 1910.
In the First World War he joined the Royal Army Medical Corps with his twin brother, but quickly they were separated by events.
He was commissioned as a lieutenant in February 1916[2] rose to the rank of captain, serving in both France and Italy.
[3] In 1919 he was based in Cologne as part of the Prisoners of War Repatriation Command for the 3rd Bavarian Army Corps.