"I'm searching for the lyrics of a song once sung by The Corries, about the battle at Sherrifmiur or Sheramoor"

You're mixing up not just your battles but your wars Len. The song you quote is about the Battle of Prestonpans where Bonnie Prince Charlie's army defeated the Hanovarian army led by General Cope during the 1745 Jacobite Rebellion. The Battle of Sherrifmuir was in the 1715 Rebellion when the Hanovarian army led by the Campbell, Duke of Argyll, halted Mar's Jacobite army.