Does anyone know the last name of the girl named Lisa in the book and movie Marley and Me?

Hi. I read the book "Marley and Me" and I'm just a very curious person. Well, in one part of the book, a girl named Lisa gets stabbed and at the end of the chapter, after she gets out of the hospital, John (the author) says that she became a television broadcaster. I'd like to see what she looks like, just out of curiosity, so I was wondering if anyone knew her last name?