Darleen Dreamer (hidden)/theories

Who is this Darleen?
I was studying the file with the tumbnails, and I noticed something; this Darleen's thumbnail was with her family (Darleen is in between Dirk and Bella), while the other Darleen's was really, really close to the end, along with the "real" Skip Broke, in between Michael Bachelor and that maid, Lucy Hanby(?), meaning they were created later into the game... Something tells me Maxis is messing with our heads... But I think this Darleen and the hidden Skip may be the REAL Darleen and Skip... Wonder who the other two are.