For draft versions see Margaret Sanger Papers Micrfoilm Edition, Smith College Collections, S71:404. For copies of drafts of data on Japan and Italy which Sanger used that were probably redated, see Margaret Sanger Papers Micrfoilm Edition, Smith…
Margaret Sanger gave this speech to open the Sixth
International Neo-Malthusian and Birth Control Conference at the Hotel
McAlpin in New York City. For a draft
version see Margaret Sanger Papers Microfilm, Library of Congress, LCM 128:267.