In a 1908 letter to Arizona historian Sharlot Hall , he stated that his amputated arm was buried between the two graves .
Butterfield employee Silas St. John was the sole survivor of this massacre .
In a 1908 letter to Arizona historian Sharlot Hall , Silas St. John stated that Silas St. John 's amputated arm was buried between the two graves .
Butterfield employee Silas St. John was the sole survivor of this massacre .