all national park employees and volunteers

I'm fortunate to have visited many of our national parks. I would be hard pressed to name all the individuals who have made these visits more informative and enjoyable. I never encountered a park employee or volunteer who was not friendly and helpful. Hats off to these workers who showcase the wonders of our country.
First Name: 
Mary
Last Name: 
Woodcox
Zip Code: 
46544
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State: 
Indiana