Rguing how vital the poets biography is to stopping by woods on a snowy evening

I will be writing a research paper arguing how vital the poets biography is to the primary text. In this paper I will be writing about Robert Frost. As my primary text I want to use Stopping by woods on a snowy evening by Robert Frost.
I will only need an introduction, a strong thesis and the first paragraph or so to help me start my paper.
I can use 3 sources (One is the primary text which is the poem I chose to write about.) The other 2 can be biographies. ( one of those must be written about the poem itself.