Citing interviews
Just a note to remind you that you need to cite interviews or other outside sources used in your upcoming draft. For interviews, the format would be as follows.
Smith, Joe. Personal Interview. 17 Oct. 2007.
As long as it's clear in your paper that the fact/quote came from this person, you don't need to cite. If not, then just use their last name--(Smith). If you didn't get permission to use their name, and they're not an "official" at the place, just a private person, then you might also consider using a pseudonym--a made up name that protects their real name.