The origin of the term is difficult to ascertain. According to the recollections of veteran Phillip Leveque:
Perhaps I should explain the derivation of the term "dogface". We lived in "pup tents" and foxholes. We were treated like dogs in training. We had dog tags for identification. The basic story is that wounded soldiers in the Civil War had tags tied to them with string indicating the nature of their wounds. The tags were like those put on a pet dog or horse, but I can't imagine anybody living in a horse tent or being called a horseface. Correctly speaking, only Infantrymen are called dogfaces. Much of the time we were filthy, cold and wet as a duck-hunting dog and we were ordered around sternly and loudly like a half-trained dog.
Perhaps I should explain the derivation of the term "dogface". We lived in "pup tents" and foxholes. We were treated like dogs in training. We had dog tags for identification. The basic story is that wounded soldiers in the Civil War had tags tied to them with string indicating the nature of their wounds. The tags were like those put on a pet dog or horse, but I can't imagine anybody living in a horse tent or being called a horseface. Correctly speaking, only Infantrymen are called dogfaces. Much of the time we were filthy, cold and wet as a duck-hunting dog and we were ordered around sternly and loudly like a half-trained dog.