Typhoid Mary: A Historical Investigation Lesson Packet

Investigate one of the most fascinating public health cases in American history through evidence, historical documents, scientific reasoning, and ethical debate.

Typhoid Mary: A Historical Investigation is a comprehensive inquiry-based unit for grades 9–12 that transforms students into investigators as they examine the case of Mary Mallon, the Irish immigrant cook later known as Typhoid Mary. Rather than simply reading about the events, students analyze evidence, trace disease transmission, evaluate historical sources, and grapple with the difficult balance between individual liberty and public safety.

Designed for both History and Science classrooms, this interdisciplinary resource explores epidemiology, germ theory, immigration, media influence, public health law, ethics, and historical investigation through engaging case files and text-dependent activities.

Students will investigate:

• The science behind typhoid fever and germ theory
• How epidemiologists trace disease outbreaks
• The discovery of asymptomatic (healthy) carriers
• Immigration and domestic service in Progressive Era New York
• George Soper's investigation
• Public health, quarantine, and constitutional questions
• Media sensationalism and historical bias
• The ethics of government authority during disease outbreaks
• How historical events continue to influence modern public health policy

What's Included

✔ Comprehensive historical investigation packet

✔ Multiple evidence-based Case Files

✔ Pre-reading activities

✔ Anticipation Guide

✔ Annotation system

✔ Evidence tracking organizers

✔ Chain of Infection activity

✔ Historical source analysis

✔ Text-dependent questions

✔ Critical thinking and historical analysis prompts

✔ Scientific vocabulary in context

✔ Public health ethics discussions

✔ Student reflection activities

✔ Complete Teacher Guide

✔ Complete Answer Key

Skills Students Practice

• Historical thinking
• Close reading
• Evidence-based writing
• Scientific literacy
• Epidemiology fundamentals
• Cause and effect analysis
• Source evaluation
• Critical thinking
• Media literacy
• Ethical reasoning
• Cross-curricular connections between History and Science

Perfect For

• U.S. History
• World History
• Biology
• Health Science
• Medical Pathways
• Public Health Units
• Epidemiology Lessons
• Forensics
• Government & Civics
• Sub Plans
• Honors & AP enrichment

This investigation encourages students to move beyond simple judgments of "hero" or "villain" and instead examine how science, fear, law, media, and society interact during times of crisis. Through evidence-based inquiry, students develop a deeper understanding of one of history's most influential public health cases while making meaningful connections to the modern world.

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