found: L. Coelij Lacta[n]cij firmiani diuina[rum] institutionu[m] aduersus ge[n]tes liber prim[us], 27 August 1478(name not given; book label in NYPL copy: HNF)
found: The Helmut N. Friedlaender library. Part I, Monday, 23 April 2001, 2001:p. 197 (describes copy of Lactantius subsequently acquired by NYPL)
found: RLIN, 9/22/04(hdgs.: Friedlaender, Helmut N.; Friedlaender, Helmut; usage: Helmut N. Friedlaender)
found: New York times WWW site, Dec. 1, 2008(in obituary dated Nov. 30: Helmut N. Friedlaender; b. Helmut Nathan Friedlaender, 1913, Berlin; d. Tuesday [Nov. 25, 2008], Yarmouth, Me., aged 95; book-loving lawyer and financial adviser whose quietly assembled collection of early printed books and illuminated manuscripts caused a stir in bibliophilic circles when it went to auction; )
found: Independent online ed., Dec. 24, 2008(Helmut Friedlaender; b. Helmut Nathan Friedlaender, June 17, 1913, Berlin; d. Nov. 25, 2008, Yarmouth, Me.)
found: New York Times, November 28, 2008, via WWW, , February 17, 2017(paid death notices placed by the Council of the Grolier Club (Friedlaender a member since 1975 ); by American Securities ("our former leader, friend and colleague"; member of the President's Council of the New York Public Library; educated in Germany and Switzerland; learned international arbitrage in London, England; arrived in New York in 1936; during World War II, was a writer and announcer for NBC (the Voice of America); In 1944, became a U.S. citizen); by Board of Directors of AMETEK (served as director of AMETEK, Inc.. for more than 50 years; called Hal))