Hemsley is a surname. It means something like “home, in the lee” — where “lee” in this context refers to the sheltered side of something - perhaps a valley. As a family name, it's not a bad one. A family should be a safe place, a home, and provide shelter.
The reason this website is here is that the domain
is in use by this particular Hemsley family to allow keeping email addresses
across the inevitable occasional shift of email service provider. It's
not exciting, but you weren't promised excitement.