Final answer:
The 'tired,' 'poor,' 'huddled masses' in the poem are immigrants passing through Ellis Island, welcomed by the Statue of Liberty as they sought a new life in America.
Step-by-step explanation:
The "tired," "poor," "huddled masses" referred to in the poem are immigrants passing through Ellis Island. This phrase comes from "The New Colossus," a sonnet by Emma Lazarus that is inscribed on a plaque at the pedestal of the Statue of Liberty. The poem welcomes immigrants to America, suggesting that the country is a place of refuge and hope for those seeking a better life. It was written as a tribute to the Statue of Liberty and as an expression of Lazarus's empathetic support of immigrants arriving in the United States.