Shelton

Shelton is, nowadays, generally a Middle Name. It doesn't really say anything about one's personality, because it was given to them promptly after he or she was born.

Shelton used to be a common First name in the early 20th century. Your parents might have given you your middle name as Shelton, because their grandfather's first name was Shelton.

Sixteen

Most commonly referred to someone's age. It is said to be one's "Prime," age, where they look/shine/feel their best. Sixteen is the age where you get multitudes of exciting privileges such as quickie-driviers' license, get a decent job (Host/hostess,) and you're no longer at the very "bottom" of highschool.

Daughter: "Oh, Daddy, please can you get me a convertible when I turn sixteen?"
Daddy: "Of course, Sugar plum!"
Daughter: "Oh, thanks Daddy!"

or,

Wife: "Didn't I just look so good when I was sixteen?"
Husband: "Yeah...This photo book sure has some crazy pictures of us crazy teens!"