You can't match them to users unfortunately as all users in a particular vault store get mixed, so you can have thousands of people all storing to
E:\Enterprise Vault Stores\Users Vault Store\Ptn1\2010\ etc
this is why you cannot do user level restores with enterprise vault
It is possible to do a look up based on the file names of the DVS's and DVSSP's to see who they would belong to, but it would be a tedious chore to do it on a grander scale
https://www.linkedin.com/in/alex-allen-turl-07370146