Quantitative History

Overview

This is a chapter in progress about the subdiscipline of quantitative history. Historian Gary J. Kornblith defines quantitative history as “… history that involves the use of numeric data—or other evidence that can be counted—as a primary source for analysis and interpretation.”^[1]

Case Study: Counting the Dead in the American Civil War

In 2011, demographic and quantitative historian J. David Hacker published “A Census-Based Count of the Civil War Dead” in the Kent State University-based Civil War History Journal.^[2] Listen to Hacker explain his research in this 2-minute video.

As a quantitative historian, Hacker employs numeric data analysis to study the number of deaths in the United States during the time of the American Civil War ( 1861-1865). His pathbreaking work uses census data and population records to put more precise numbers on an issue historians struggled to analyze due to incomplete or unavailable primary sources from the Civil War era. Importantly, Hacker includes a clear methodological explanation of the quantitative methods used to reach the new estimate of deaths.

Lesley J. Gordon and Kevin Adams, editors of the journal Civil War History, provided the following statement in their introduction, “the editors of Civil War History feel that the following contribution by J. David Hacker of Binghamton University, SUNY, stands among the most consequential pieces ever to appear in this journal’s pages.”^[3] From a historiographical perspective, many historians expected Hacker’s findings to change the way scholars analyzed Civil War history in the United States.

Historian Nicholas Marshall countered this assertion with his 2014 article, “The Great Exaggeration: Death and the Civil War” published in the Journal of the Civil War Era.^[4] Marshall argues that conclusions based on quantitative analysis need to be considered in tandem with historical context. In other words, Marshall cautioned against applying a presentist lens to the study of Civil War history, which could distort the meaning of the quantitative results.

In 2014, Hacker wrote a response to Marshall’s critique. It was also published in Civil War History.^[5] Read the three articles below and work through the historiography on your own. What are your conclusions?

Read the Articles

Hacker, J. David. “A Census-Based Count of the Civil War Dead.” Civil War History 57, no. 4 (December 1, 2011): 307–48. doi:10.1353/cwh.2011.0061.

Marshall, Nicholas. “The Great Exaggeration: Death and the Civil War.” The Journal of the Civil War Era 4, no. 1 (March 1, 2014): 3–27. doi:10.1353/cwe.2014.0010.

Hacker, J. David D. “Has the Demographic Impact of Civil War Deaths Been Exaggerated?” Civil War History. 60, no. 4 (2014): 453–58. doi:info:doi/.

Works Cited/Further Reading

Binghamton University, “J. David Hacker Reassesses Civil War Casualties,” YouTube. July 21, 2011. Accessed October 20, 2026. https://www.youtube.com/watch?v=dGJkkuZ1_y8&t=5s

Civil War History, Kent State University Press. https://cwhjournal.com/

Flotow, M., “J. David Hacker’s ‘A Census-Based Count of the Civil War Dead,’” The Journal of the Abraham Lincoln Association 42(2). (2021): 68-84. doi: https://doi.org/10.3998/jala.2299

Hacker, J. David. “A Census-Based Count of the Civil War Dead.” Civil War History 57, no. 4 (December 1, 2011): 307–48. doi:10.1353/cwh.2011.0061.

Hacker, J. David D. “Has the Demographic Impact of Civil War Deaths Been Exaggerated?” Civil War History. 60, no. 4 (2014): 453–58. doi:info:doi/.

Kornblith, Gary. “Making Sense of Numbers,” History Matters: The U.S. Survey Course on the Web, https://www.whobuiltamerica.org/item/making-sense-of-quantitative-evidence, July 2002. (previously located at http://historymatters.gmu.edu/mse/numbers/)

Marshall, Nicholas. “The Great Exaggeration: Death and the Civil War.” The Journal of the Civil War Era 4, no. 1 (March 1, 2014): 3–27. doi:10.1353/cwe.2014.0010.