Pipl.com is about the best resource for this sort of thing. Use the name search first and use her maiden name in the last name field. Fill in the state and city fields to correspond with the last known location in which she spent six months or longer. If you know of any such place where you can be reasonably certain she was financially independent for an extended period of time, you will likely get results that you recognize as hers (i.e any place where you know she maintained a home or apartment or any financial responsibilities that would generate bills, such as rental or mortgage payments, utilities, etc.). Pick through the results and run down any promising leads. Next, if you have an old email address, run that through Pipls email search and see if it brings you to any social accounts that may have been hers. If you don’t have an email address but know where she went to college, go to the university website and see if they have an alumni look up. Most do. If you can find her college email account, it’ll give you another avenue to run down. in fact, it may just put you in direct contact with her, since even though most people stop using their collegiate email accounts after awhile, most remain active and many people have set them up to foward to their private email addresses. So sending a note to her old university email might just have the effect of getting a message into her current email accounts in box. Hope that helps. cheers.