17th President: Andrew Johnson, 1865
Tack = 17 (Johnson was the 17th president)
NOTE: The John here means a toilet.
John's son = Johnson
Facial = 865 = 1865 became president
Hands = Andrew (as in Handy Andy)
A tack (17) held up a notice in the loo where the john's son (Johnson) was having a facial (865 = 1865)
Connect Johnson to Andrew
Don't forget – when you've been to the john's son you need to wash your hands (Handy Andy = Andrew) and use the hand dryer.
NOTE: The way Mammoth Memory remembers Andrew/Andy is to think Andy Hand or Handy Andy. Anything to do with hands can then relate to Andy.