|Administrative History||Lockhart enlisted to the Royal Navy as surgeon probationer in February 1916. He served on HMS Garth Castle, HMS Victory, HMS Pellew and HMS Europa in Scapa Flow, 1916 - 1917 and in the Aegean, February - October 1919. He resumed his medical studies for the full academic session 1917 - 1918 and undertook a short period of home-based service, late 1918 -early 1919. He was de-mobilised in October 1919 with the rank of surgeon lieutenant.|
During his time in the Navy, Lockhart took a great interest in the cases that he encountered and the places that he visited. His observations from this period are well preserved in a series of letters to his parents and small collections of photographs and holiday souvenirs. He incorporated his reminiscences into his academic and public lectures, and souvenirs collected at this time, particularly relating to the landscapes and people of the Mediterranean, continued to provided illustrative material for these talks throughout his working life.
|Description||Appointments, reports and de-mobilisation certificates, 1916 - 1920; letters sent from Lockhart to his parents whilst on home-based duties in Edinburgh, and on Naval service in the Mediterranean, November 1918 - September 1919; notes of medical cases attended, 1918 - 1919; postcards and souvenirs, c 1916 - c 1919; printed papers, 1976.|