Walker is a very special dog, not only to his owner Mary Ehrhart, but to the many people whose lives are affected daily by his presence. Walker is a Therapy Dog. He lives in Memphis and visits hospitals and rehab centers where he helps people of all ages through their difficulties.

Mary writes:
   Isn’t he wonderful?  Mr. Leon sure thinks so; he gets up out of his chair with gusto for Walker. Walker cant wait to get the ball and bring it back while Mr. Leon stands, balances and waits. 
 What a DELTA dog!

Thanks to Mary and Walker's friends for the photos.