Possible Clues:

• Cal's brother in "East of Eden"
• '127 Hours' subject Ralston
• Schönberg's 'Moses und ___'
• Elvis's middle name, on his birth certificate
• Middle name of The King
• Eisenberg who played Nog in "Star Trek: DSN"
• Middle name of a rock legend
• Presley middle name, depending on who you believe
• One of the Trask brothers
• Mountain climber Ralston, subject of "127 Hours"