Many Social Studies theses are archived each year, and are available through the Harvard Library System.
Some tips to narrow your search: Select "Archives/Manuscript," enter the last name of the author, and enter the year. If the thesis does not appear, check with the office to find out if it was indeed archived. You can also direct your questions to the Harvard Librarians, who are available to assist students.
Click below to see the full list of theses for an academic year.