The letter reminded me of my own visit to the Nate Whipple Highway in 1999. Here's the photo I took in July 1999:
We saw several other locations named after Nate. Here is what the Nate Whipple Medical Center (on Nate Whipple Highway, of course) looked like that same day:
We also visited Whipple Station--part of the North Cumberland (R.I.) Fire Department:
Nate Whipple served as fire chief from 1925 to 1963. You can see Nate's ancestry in the Whipple Genweb.
What do you know about Nate Whipple? Was his middle name William or Winthrop?