A man who leads religious services is sometimes called a clergyman and a woman who leads religious services is sometimes called a clergywoman.
Answer: I think its the 1849 Gold Rush.
Explanation:
They moved around (though the cowboys were herding cattle, whereas the Native Americans were following the buffalo). They cared for the cattle (eg by bog-riding and from line-camps) in a way similar to the way Native American dog-soldiers cared for the buffalo.
