Hi Stacey,
Disney World often offers special pricing or packages for members of the military. You can see these noted on the
WDW Special Offers web page. Beyond that, I don't know of public service discounts from Disney itself.
However, the Swan and Dolphin resorts, which are located on Disney property but independently operated, sometimes have their own discount plans for helper professions such as teachers, nurses, and first responders. I suggest that you investigate these options directly at swandolphin.com or 407-934-3000.
Another great source of discount information is the independent website mousesavers.com. They keep track of every Disney discount available. I'll keep my fingers crossed that you find something there that works for you.
Good luck with your planning. Please let us know what else we can do to help.