Shep (American dog)
Shep was a Border Collie and former herding dog that appeared at the Great Northern Railway station in 1936 in Fort Benton, Montana, and watched as his master's casket was loaded onto the train and left. The dog remained at the station, waiting for his owner to return for the next five and a half years, until he eventually became deaf and was killed by an oncoming train he could not hear in 1942.