21. Letter from James F. Kieley to Mary Lasker Creator: Kieley, James F.National Cancer Institute (U.S.) Date: 2 September 1954 Genre: Letters (correspondence)
22. Letter from J. R. Heller to Mary Lasker Creator: National Cancer Institute (U.S.)Heller, J. R. Date: 15 September 1948 Genre: Letters (correspondence)
23. Letter from J. R. Heller to Mary Lasker Creator: National Cancer Institute (U.S.)Heller, J. R. Date: 15 October 1948 Genre: Letters (correspondence)
24. Letter from Ralph W. Yarborough to Mary Lasker Creator: Yarborough, Ralph Webster, 1903-1996United States. Congress. Senate Date: 2 June 1970 Genre: Letters (correspondence)
25. Letter from Frank J. Rauscher, Jr. to Mary Lasker Creator: Rauscher, Frank J., JrNational Cancer Institute (U.S.) Date: 18 March 1974 Genre: Letters (correspondence)
26. Letter from Werner Henle to Mary Lasker Creator: Children's Hospital of PhiladelphiaHenle, Werner, 1910-1987 Date: 10 October 1977 Genre: Letters (correspondence)
27. Memorandum from Hubert H. Humphrey to Mary Lasker Creator: Humphrey, Hubert H. (Hubert Horatio), 1911-1978United States. Congress. Senate Date: 5 April 1971 Genre: Memorandums
28. Letter from Mary Lasker to R. Lee Clark Creator: Lasker, Mary Date: 20 June 1978 Genre: Letters (correspondence)
29. Letter from Memorial Sloan-Kettering Cancer Center to Mary Lasker Creator: Stewart, William E., IIKrim, MathildeChudzio, TadeuszColby, ClarenceLin, Leo S.Memorial Sloan-Kettering Cancer CenterSanders, F. KingsleyAbreu, SergioBancroft, Carter Date: 29 November 1977 Genre: Letters (correspondence)
30. Letter from Mary Lasker to Kari Cantell Creator: Lasker, Mary Date: 27 February 1978 Genre: Letters (correspondence)