Late last month, a woman watched as the couple you see in the photo below got engaged at the Louisville airport.

She was so taken by the scene playing out in front of her that she had to take pictures and told the newly-engaged couple she'd email them the pictures.

Then she misplaced the email address.

Take a look:

Yep, another Facebook mystery unfolds.

This has gone viral on Facebook and maybe you were there, too, on April 28th and can help out.

I wish Sherry and the young couple all the best.