Environmentalist John known as the 'Father of the National Parks'

Let's find possible answers to "Environmentalist John known as the 'Father of the National Parks'" crossword clue. First of all, we will look for a few extra hints for this entry: Environmentalist John known as the 'Father of the National Parks'. Finally, we will solve this crossword puzzle clue and get the correct word. We have 1 possible solution for this clue in our database.