Those Who Work on Thanksgiving

I was just starting to visit this site when I heard a train whistle from a train on tracks about a half mile from my home and realized there are those who work on Thanksgiving. Some of them should and we should be thankful they are working today. There may be a skeleton crew for some of them. I may have forgotten a group or two:

Police
Firefighters
Nursing Home Employees
Hospital Workers
Military
Pharmacies

Airline Employees
Taxi Drivers
Railroad Employees
Bus Drivers
Car Rental Services
Gas Station Employees

Restaurants
& unfortunately, recently: Retail Store Employees