Tristan Farnon, the character from "All Creatures Great and Small," is based on the real-life veterinarian Brian Sinclair. Brian Sinclair married Sheila Rose Seaton, the daughter of a Leeds general practitioner, in 1944. This is the factual marriage behind the character Tristan Farnon. There is no historical record of a marriage to a character named Florence Pandhi, who appears to be a fictional addition to the show for dramatic purposes. Therefore, Tristan Farnon (Brian Sinclair) was married to Sheila Rose Seaton in real life. They had three daughters and lived in Harrogate after Brian retired.