They're authenticated differently (different real names and different birthdates etc) which would point to their being siblings. However, savonarola listed his siblings (here:
http://www.behindthename.com/bb/arcview.php?id=208266&board=baby) and there's no
Stephanie J
Harris amongst them.
♦ Chrisell ♦
All we have to decide is what to do with the time that is given us. - J.R.R. Tolkien.