One-in-four US citizens can trace their ancestry through New York's Ellis Island, which for over 60 years until 1954 was the country's most important immigration station. Sarah Baxter , whose grandmother arrived from Czechoslovakia in 1907 at the age of seven, uncovers some surprising family history and hears the compelling testimonies of other immigrants, held at Ellis Island's oral history archive. Learn more about the processing centre on In the Footsteps of Annie Moore on Tuesday at 8.30pm on Radio 2. EditorGwyneth Williams Producer Jane Beresford