The best thing to do is find a state/county/local legislator or airport board member who is friendly to the cause. Politician-to-politician talk is always best.

You can also purchase a staff directory from several sources. However, there is a lot (and I mean A LOT) of staff movement in DC right now as people are moving jobs, leaving jobs, etc. So between now and say, April (when staff members are in place), you won't get much accomplished (sad -- but true).