3 finding aid(s) found containing the word(s) Preparatory schools.

  1. Lee De Forest papers, 1884-1955

    375 items ; 4 containers ; 1.6 linear feet ; 2 microfilm reels. -- Manuscript Division, Library of Congress, Washington, D.C.

    Summary:

    Radio pioneer and inventor. Correspondence, diaries, technical notes and other material relating to De Forest's inventions in radio and electronics and their effect in sound recording and transmission, efforts to exploit his discoveries through various business ventures, and his competition with Guglielmo Marconi in the field of wireless communication.

  2. Coolidge-Pollard families papers, 1818-2015

    8,000 items ; 34 containers plus 8 oversize ; 20 linear feet ; 2,981 digital files (5.2 GB). -- Manuscript Division, Library of Congress, Washington, D.C.

    Summary:

    Correspondence, diaries, travel journals, photographs, postcards, scrapbooks, legal records, drawings, newspaper clippings, genealogical research notes, poetry and other writings, books, and other printed matter chronicling the lives of the Pollard family of Vermont who were maternal relatives of Calvin Coolidge. The collection includes correspondence between Coolidge and his relatives as well...

  3. Kermit Roosevelt and Belle Roosevelt papers, 1725-1975

    61,500 items ; 202 containers plus 3 oversize ; 80.6 linear feet. -- Manuscript Division, Library of Congress, Washington, D.C.

    Summary:

    Author, businessman, explorer, and soldier (Kermit Roosevelt). Businesswoman and social leader (Belle Roosevelt). Correspondence, diaries, family papers, speeches, writings, subject files, military records, business and financial records, photographs, scrapbooks, printed matter, and other material reflecting many aspects of the Roosevelts' social, personal, and business activities.