Who do you think the speaker is?

Welcome to Yellowstone National Park. Before we start our nature walk today, I’d like to give you a brief introduction to our National Park Service. The National Park Service began in the late 1800’ s. A small group of people found the land now called Yellowstone, and after hours of discussion around a campfire they decided that it should be enjoyed by everyone. Two years later the government declared it the first national park in the world.
    After it became a national park, many other areas of beautiful scenery were set aside and in 1916 these parks began to be managed by the National Park Service.
    I’m now employed by the National Park Service and I’m on duty at all time to answer questions and help visitors with any difficulty. Nature walk, guided tours, and campfire talks are offered by specially trained members. The Park Service also protects the animals and plants within the parks.