history: I'm thankful for my old elementary school principal.  Hope she's doing well wherever she is.  She saved me from drowning when I was in 1st grade My old elementary school principal saved me from drowning when I was in 1st grade.  I'm eternally thankful for her and hope she's doing well wherever she is now
current: thats an amazing memory to have, have you since visited her or sent her a card? 
next: That's a great idea but I don't know where she lives