Is my Will, Durable Power of Attorney, Living Will, and Health Care Surrogate Designation necessary to update my daughters names and addresses?

From your question it appears that your daughters have taken their husband's surnames and moved.  If this will not interfere with other peoples' ability to identify and contact them, no change need be made.  If, however, their telephone numbers have changed, you will want to reflet this in the Health Care Surrogate Designation.  A health care provider will need to be able to call them, not to write a letter which may or may not be forwarded.