For the past four decades, a Saskatchewan high school English teacher has kept his commitment to thousands of former students by mailing them all a handwritten letter they had written to themselves as high school freshmen, to be read by their eyes only when they reached adulthood.

The 72-year-old retired teacher has spent countless hours tracking down students who've long grown up, moved away from home and married, using social media and good old-fashioned detective work. This year especially, former students' Facebook news feeds have been awash with people delighted — and surprised — to actually get the letters.

(READ the story in the National Post)