Question: Ellis Island, the gateway for over 12 million immigrants to the United States as the nation's busiest immigrant inspection station and where social worker Ludmila Foxlee was employed from 1920 to 1937, was made part of which National Monument in 1965?
Sentence (from "Ludmila Foxlee"): She became one of most well-known immigrant aid workers and her meticulous notes are currently stored at the Ellis Island archives.
Relevant evidence: No