Chevra Kaddisha Tifereth Israel: Jewish population in 1919 was 610. Source: "Directory of Jewish Local Organizations in the United States", pp. 330-583. American Jewish Year Book 5680 (September 25, 1919 to Sept. 12, 1920); Volume 21. Edited by Harry Schneiderman for the American Jewish Committee Submitted by Alan Hirschfeld.
[UPDATE] Mentioned in article about Heinz History Center [January 2017]