Richard Scarry's surname is indeed pronounced "scary," rather than (as I assumed for many years) "scarr-ry."

That is, it rhymes with Harry, Larry, carry, parry, tarry, and marry, rather than... uh, starry, I guess?

Where I come from, Scarry rhymes with Harry, but Harry does not rhyme with scary.

  Harry does not rhyme with hairy
  Scarry does not rhyme with scary
  Marry does not rhyme with Mary. Nor with merry!