No, Tristan Farnon will not return from the war in Season 4 of All Creatures Great and Small. Tristan is away serving in the Royal Army Veterinary Corps.
The character is based on Brian Sinclair, who passed away in 1988 at age 73.
Farnon leaves Yorkshire Dales to begin his World War II military service in the Season 3 finale.
The special episode, MerryBloody Christmas, saw Siegfried Farnon bid an emotional farewell to his younger brother.
The real Sinclair worked for his brother until he graduated from the Royal Veterinary College in Edinburgh in 1943. The same month he joined the Royal College of Veterinary Surgeons.
Upon graduation, he returned at 23 Kirkgate in Thirsk, Yorkshire, to his brother's practice.
Sinclair enlisted in the Royal Army Veterinary Corps and wed Sheila Rose the following year. Shortly after this, the veterinary surgeon was deployed to Haryana, India.
He was born in 1915, so he was just 24 years old when the Second World War broke out.
He then became a member of the Ministry of Agriculture's Sterility Advisory unit based in Inverness, Scotland.
After several years in 1950, the ministry offered him to transfer to a diagnostic laboratory for veterinarians in Yorkshire.
James Herriot's journey into the war
James Herriot aka Alf Wight graduated from Glasgow Veterinary College on December 14, 1939.
He landed his first job at a veterinary practice in Sunderland in January 1940. He then joined a rural practice at 23 Kirkgate in Thirsk, Yorkshire, in July.
The practice owner, Donald, had enlisted in the Royal Air Force (RAF).
Thus, Herriot also enlisted in the RAF in November 1942. The veterinary surgeon did well in his training and became one of the first to fly solo in his flight. In July 1943, he performed surgery on an analfistula.
After the surgery, he was accounted unfit to fly combat. The following November, he was discharged as a leading aircraftsman.
He then returned to his wife at her parents' house. They lived there until 1945 and moved back to 23 Kirkgate.
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