Though Sanger contacted her associates in the 1940s and the 1950s, urging them to send her the letters she had written them so that they could be preserved in her collection, she did not recover all of them. In order to fill the haps in the two main archives, the Margaret Sanger Papers Project undertook a ten-year search to locate Sanger documents in other collections. In the process we located some 7,000 documents, many of them fascinating personal letters written to close friends and confidants, which were located in over 400 archives and private collections.
We are still actively gathering Sanger papers: letters written to or from her, letters written on her behalf by secretaries, reports or interviews by her, speeches, articles, and diaries. IF you have any Sanger Papers in your private collection or know of any at a library or archive, please contact the project to see if we have already located them.