How do you grieve for a person you never get the chance to know?

Our bereavement series all this week has been asking the question how do we learn to live with grief. But how do you grieve for a person, a member of your family, that you never get the chance to know. It's a reality for the thousands of families who, every year, go through miscarriage or stillbirth. Julie-Ann Coll's baby son Mark was stillborn in 2004 at 22 weeks. She keeps a memory box beside her bed and by going to his grave, Julie-Ann feels that keeps baby Mark very much a part of the family: