Without specific excerpts from the speeches in the play "I Am American" by Jennifer Tibbetts, it's difficult to definitively identify which two speeches emphasize the theme of immigrants coming to America to escape difficult situations. However, I can suggest looking for speeches that discuss personal stories of struggle, hardship, or oppression prior to coming to America.
Typically, a character who represents a background of fleeing violence, persecution, or poverty might provide insights into this theme. If you can recall the themes or content of each character's speech, I can help you analyze them to see which are most aligned with this theme. Alternatively, if you have access to summaries or descriptions of each character's speech, that might also help in making a determination.