In the case you're describing, it looks as if Jennifer was only active for one day in 2011 and created 3 or 4 profiles. Assuming she is no longer interested, you might try writing to info@wikitree.com, explain the situation, and ask if the sys admins could make you the manager of all the profiles she created. It may be necessary for Jennifer to OK that by sending a note of her own from her current e-mail account, but I think it would be quicker than going through the Unresponsive Manager procedure. If that doesn't work, you can still do as Ruben suggested.