15th President: James Buchanan, 1857
Tail = 15 (Buchanan was the 15th president)
Blue cannon = Buchanan
Flag = 857 = 1857 became president
James Bond = James
The tail (15) of the squirrel trembled as he peeped inside the blue cannon (Buchanan) while the flag (857 = 1857) fluttered over the battlefield.
Connect Buchanan to James
The blue cannon (Buchanan) fired James Bond (James) into the sky.
NOTE: The way Mammoth Memory remembers James is to think of James Bond.