“Trolley Tunnel Open to New Jersey” (英語). The New York Times: p. 1. (1908年2月26日). https://query.nytimes.com/gst/abstract.html?res=9507E2D81F3EE233A25755C2A9649C946997D6CF2016年7月20日閲覧. "The natural barrier which has separated New York from New Jersey since those States came into existence was, figuratively speaking, wiped away at 3:40½ o'clock yesterday afternoon when the first of the two twin tubes of the McAdoo tunnel system was formally opened, thus linking Manhattan with Hoboken, and establishing a rapid transit service beneath the Hudson River."
