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	1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s 2000s		After surviving the economic hardship of the 30s A. Epstein, along with the rest of the United States, was blindsided by the events at Pearl Harbor on December 7, 1941. But with the War came a major push in industrial development and A. Epstein’s diverse engineering talents positioned the firm to be a major player in new manufacturing projects. Our firm was responsible for many steel projects including development for Fansteel Metallurgical Corporation and Indiana Steel Products Company which help the War effort and America’s growing need for steel. In addition, A. Epstein welcomed Sidney Epstein, a recent graduate of the University of Illinois and Abraham’s youngest son into the firm in 1943. This event led to our firm evolving into a full-service engineering and architecture firm known as A. Epstein and Sons, Inc. in October of 1946. After the war, the firm began to branch out from a strictly industrial focus and was responsible for many commercial, educational and healthcare projects including the headquarters for Walgreen’s and the Mt. Sinai Hospital, a state-of-the-art facility located in Chicago. Significant Epstein Events 1940 Sprague-Warner 1942 Rexall Drug Company 1943 Fansteel Metallurgical Corporation 1943 Sidney Epstein joins Firm 1944 The Hallicrafters Co. 1945 Columbia Pipe & Supply Company 1946 2011 Pershing Road Headquarters, A. Epstein –Structural Engineer becomes A. Epstein and Sons, Inc. 1946 Indiana Steel Products Company 1947 Walgreen Company Headquarters 1948 Mt. Sinai Hospital 1949 Deborah Boys' Club
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