Your John Murphy is in my family line. Your g-g gf John Murphy was the son of Dennis Springer and Susan Griffin. His brother Rufus was my g-g grandfather. JM had five brothers. They were : Rufus, Japhus, Jabez, Nathanael, and Norwood.
I pray this information gets to your father.
On a side note, we are having the 70th annual Springer Reunion in Echola, AL (Tuscaloosa County) on October 16th, 2017. I would love for you and your dad to join, if possible. Please msg me for additional information
Allison Houston Olson