If you're trying to compile dox on this person, DO NOT USE INFORMATION THEY PROVIDE AS THE BASIS FOR IT. Tumblr is notoriously full of roleplayers who openly lie to and play along with each other.
There is no reason to believe that anything this person claims about their self is true. Age, names, relationships, and schooling are all easily falsified if your only evidence for it is their tumblr. If you're using that information to find other information then you're going to have a very bad time. Considering the accusations that people in this thread are making, please be certain that you know what the fuck you're doing if you engage in meaningful digging.