LS-Lotte Klemperer, requesting copies of programs of concerts conducted by her father Otto Klemperer in 1926 and 1927 with the New York Symphony; LS-Peter Heyworth, biographer of Otto Klemperer; Biographical information on Otto Klemperer, record reviews and other press notices; Availability of Otto Klemperer to conduct in New York in 1958 and 1959 and his conditions for a possible engagement regarding fee, airplane travel and number of appearances per week; September 1957 letter from Klemperer declining engagement; Artist Life Sept 1956 article on Otto Klemperer