This folder contains official documents related to Ernest Kalmus, the last husband of Auguste "Gusti" Hasterlik who worked in New Mexico throughout the war. This includes his membership card for a medical organization in Vienna from 1925. It also includes his Austrian passport, which was issued on July 3, 1939 and includes "Israel" as his middle name. It also includes a small photograph of him. There is an official certificate from June 22, 1939, which certifies that he accepts "Israel" as his middle name. Additionally, there is his passport from the United States dated February 16, 1954; his certificate of naturalization from April 14, 1957. There is his birth certificate from September 22, 1899 and his graduation diploma from Vienna on July 5, 1922. There is correspondence from the American consulate in Vienna to Ernest about his attempts to obtain a visa. There are documents certifying his work at both American and Austria universities, in addition to a "Heimatschein" which certifies where he is from, issued on September 25, 1920. Finally, there are copies of his death certificate from June 19, 1962.