I bought two signed prints by artist Lydia Leh--beck (cannot read
whole last name) am wondering who she is and if her art is worth
anything?

The only clue I've found is this:

There is an artist named Lydia Lehmbeck who is apparently a member of
the Westfield Art Association in New Jersey.

"Sue Hensler, Charlene Cheng, Jane Annis, Jeannette Golda, Virginia
Hensler, Lydia Lehmbeck and Barbara Schwinn - florals, figures and
landscape in watercolor."

http://www.goleader.com/00oct05/23.htm

It would be very helpful if you could post a digital image showing the
prints and the signature.

Sounds like it could be the one - this is a watercolor landscape. Am
unable to send digital image at this time - am not at home and laptop
not configured for digital. Thanks for information - I feel this is
the answer to my question for the most part and can proceed with this
knowledge. Thanks. cmm