The first sentence. There should be a comma after surprised.
How many sentences? And all the words?
<span>Norris, one of the superintendents, made the Yellowstone roads, roads, built one of the park headquarters at Mammoth Hot Springs, hired the first “gamekeeper,” and campaigned against hunters and people who tried to destroy the park.. Much of the primitive road system he laid out remains as the Grand Loop Road. Through constant exploration, Norris also added immensely to geographical knowledge of the park.
</span><span> Nathaniel P. Langford, another superintendent was a member of the Washburn Expedition and advocate of the Yellowstone National Park Act, was made a volunteer who greatly helped the park.</span><span> He entered the park at least twice during five years in office—was in the 1872 Hayden Expedition and to evict a squatter in 1874. Langford did everything he could without laws to protect wildlife and other natural features, and without money to build basic structures and hire law enforcement rangers.
Hope this helps!</span>
