Really well done. Great arc from Emma's childhood (with "plenty of everything") to her dawning awareness of immigrant poverty and how it led to her activism, and how her activism led to the opportunity to write this poem, and then to the lasting effect of the poem.
I also liked Glaser's portrayal of the creative process: how do you come up with an idea for a poem? ("At that time, the Statue of Liberty had nothing to do with immigrants. But Emma knew that immigrants would see the huge woman when their boats arrived...And what if the statue were a real live woman? What might *she* think...?")