Hi, I apologize in advance if this question has already been asked. I have four credit card type Park Hopper tickets from 2004. They have a magnetic strip on the back but no signatures. I went with my daughter and my parents at that time. I would like to use the remaining days for my husband and other daughter. My parents are no longer able to use them. My question is this- although they are considered non-transferable, is there any way to know who orginally used the cards? Thank you for your help!