Catherine Gaetano Gallippi is the immigrant to express appreciation for a kind stranger in the "Ellis Island Oral History Project" excerpt.
Explanation:
When the immigrants arrived in Ellis Island, they witnessed a completely different world. They all had to face a lot of difficulties and the author expresses it in this excerpt. In this context, the immigrant Catherine Gaetano Gallippi is introduced by the author.
Catherine Gaetano Gallippi expresses her appreciation for a kind stranger in this excerpt. She, along with the other immigrants reaches to the island and is treated with poor hospitality in a strange atmosphere.