A question in my scenario that a historian could ask would be. Well I don't know where to start really.
But from what I know how archives work, they need to be catalogued first - something I would assume is in place - then you establish cross references, but if you stand in front of this huge pile of information you need assistance from those that know it best - the curators.

Their preparation of the information would in my suggestion, not reveal the individual, but the actions against them.

Yes, in history it is easier to become emotionally involved if you know the individual (have you been to the Holocaust Museum in DC? They try to achieve this, with giving you a passport of an individual at the entrance to the museum, and originally you would be told at the end of the tour, if you survived or not....)

However, as for this archive, I would vote for the publication of the abstract information, revealing as much as possible, without the infringing of individuals rights.