Was Nate Tompkins a real person or a fictional character in Sergeant York?

Nate Tompkins is a fictional character in the film "Sergeant York," which is based on the life of Alvin York, a real-life World War I hero. Tompkins serves as a friend and fellow soldier to York, providing a narrative element to the story. While the character adds depth to the film's portrayal of camaraderie and conflict, he does not represent an actual historical figure.