For Essay no. 3, students will design their own research project analyzing primary evidence that addresses some research question related to the professional-managerial class. The essay will draw on at least five secondary sources, at least three of which have been located by you.
Archival records • Interviews • Surveys • Statistics (numerical data) • Official documents • Websites • Articles in the media • Public statements • Social media • YouTube videos • Representations of professionals in novels, films, TV shows, or podcasts
One good place to find primary sources is in the references and bibliographies of secondary ones (those that analyze or comment on primary sources). Your three course texts -- Khan's Privilege, Sherman's Uneasy Street, and the essays in Ruling America -- all cite primary evidence, including statistics, throughout their pages. See these examples. (Sherman, p. 7; Khan, p. 5-6 and Notes)
In the HOLLIS Basic or Advanced Search, combine your search topic with words such as:
In the Advanced Search, you can express your topic in general Keywords, or as a Subject using terms created by the Library of Congress (see more about this here).
Often, the sources you find will be a combination of primary data and secondary analysis of the data. Here are examples.
Sample searches in HOLLIS Advanced Search:
Statista
A statistics portal that integrates thousands of diverse topics of data and facts from a wide range of sources onto a single platform. Sources of information include market research, trade publications, scientific journals, and government databases.
Sample reports: Millionaires in the United States / Americans' Opinions on Billionaires in the U.S.
For other statistical sources, see Essential Resources for Locating and Using Numeric Data.
The Harvard University Archives holds records of the experiences of Harvard students from all backgrounds, including the elite. The Harvard College Class Anniversary Reports (known informally as "the Red Books") are a particularly fruitful source of firsthand biographical accounts. Beginning with the Class of 1833 and continuing to the present, these reports contain autobiographical accounts submitted by alumni every five years after graduation. Search HOLLIS (Library Catalog mode) to find reports for specific classes. For successive reports of a single class, search for "anniversary report" AND [year] -- for example, "anniversary report" AND 1903.
Volumes published before 1964 may be available online through the HathiTrust Digital Library. In the Advanced Search, search for Harvard Class Report in "Title" (class year optional) and search single volumes by keywords. (You'll need to log in as Harvard University on HathiTrust in order to download more than one page.) Visit the Harvard Archives in person to use other volumes. NOTE: Records of Radcliffe College Classes from 1879 to 1999 are held by the Schlesinger Library. The Harvard Class Reports were issued with Radcliffe beginning in 1973.
See Red Book photo and sample Excerpts from Harvard Class Reports.
In selecting Harvard graduates to focus on, you can simply browse the volumes of Class Reports, or start with a list like Prominent Alumni, Famous Alumni, or Wikipedia's List of Harvard University People. After you've selected five or more individuals from the Class Reports, you'll need to contact the Archives about viewing their student records and biographical files. The Archives may not have this material for everyone you select. Their email address is archives_reference@harvard.edu.
For more on the history and significance of the Class Reports, see: Red Books, Raw Gems: The College's Class Reports (Harvard Magazine) and Between the Lines of Harvard's Red Book (New York Times).
For other digitized historical records of Harvard, see Harvard University Archives Online Resources. For guides to finding specific kinds of information in the Archives, see Harvard University Archives Research Guides.
HOLLIS has two main parts. There’s the traditional Library Catalog of Harvard's books, journals, films, sound recordings, maps, and so on. Then there’s a huge additional database of articles, reviews, etc. which come from various sources outside Harvard. Many of these are available in full text online through Harvard's subscriptions.
You can search the Library Catalog separately, or -- especially if you want to see articles -- search for "Catalog and Articles." These choices appear as soon as you start to type a search.
Turn to the next page for tips on using HOLLIS effectively.
Use the Selected Databases for faster access to more relevant search results. To find even more, go to HOLLIS Databases.
► But . . . won't I get all the articles I need with HOLLIS?
HOLLIS will give you a lot of articles, but specialized databases can give you more focused results from specific fields of study.
Most of the records in HOLLIS have linked Subject Headings that you can use as a springboard for finding similar items. In the Library Catalog, most of those headings have been specially crafted by the Library of Congress. For example, here are the subject headings for Lamont's book Money, Morals, and Manners:

Go to the Subject Heading Tips to see how you can use a main heading like Executives to search for specific treatments of this topic.
Sample prompt: "I need a peer-reviewed article on the relative levels of psychological stress among members of the professional-managerial class and the general population in the United States."
OpenAI's GPT 4.1 gave me mixed results: One peer-reviewed article from 2006 that seemed like exactly what I had asked for; and, unusually for an AI assistant, it linked me directly to full text on the journal's website. But most of the other results were much older, didn't link to full text, and dealt with industrial or blue-collar workers instead of the PMC.
Using HOLLIS, this search gave me three solid results -- all peer-reviewed, in full text, with statistics. I had to use a couple of the Filter options in order to winnow out some less useful sources.
The Syllabus for your course has an excellent Selected Bibliography on the PMC that can get you started with secondary sources. Look up the titles in HOLLIS and follow their subject headings; scan their bibliographies and citations to find more sources.