found: Emery Roth & Sons architectural records and papers, 1906-1996 bulk 1951-1994, Finding aid via Columbia University Libraries WWW site, viewed November 11, 2021(Joseph Durst)
found: Wikipedia, November 11, 2021(Joseph Durst; born January 15, 1882; died January 1, 1974, at his home in New York, N.Y.; emigrated from Gorlice, Galicia, Austria-Hungary in 1902; American real estate developer, founder of the Durst Organization, and patriarch of the Durst family; when he died in 1974, his son Seymour Durst took control of the company)
found: New York Times, Jan 2, 1974, via WWW, viewed November 11, 2021(Joseph Durst; died Monday [December 31, 1973] at his home, 1136 Fifth Ave. [New York City], aged 92; real estate man; founder and retired president of the Durst Organization; came here from his native Austria in 1902)
found: Durst Organization WWW site, viewed November 11, 2021(Joseph Durst; from Gorlice, Austria (present-day Poland), arrived in the United States in 1902; married Rose Friedwald, October 15, 1907, in New York)
found: New York Jewish Week, January 12, 1974, via WWW, viewed November 11, 2021(Joseph Durst; died December 31 [1973], New York, aged 92; president of New York's Hebrew Free Loan Society from 1945 to 1972)
found: New York, U.S., State and Federal Naturalization Records, 1794-1943, via AncestryLibrary.com WWW site, viewed November 15, 2021(Joseph Durst; born January 1, 1882, Gorlice, Austria; resided in Gorlice and emigrated via Antwerp, Belgium; arrived in New York, January 16, 1902; his wife Rosie Durst wsa born in Romania)