MassachusettsHISTORY EXPLORERS GRADES 3–8
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evidence
Information from a source that helps us test a claim.
source
A document, object, image, or account we can examine.
inference
An explanation based on clues; it still needs checking.
migration
Moving from one place to another to live.
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A person who moves to another country to live.
estimate
An approximate amount, based on available information.
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A recorded interview about someone’s memories and experiences.
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People connected by a place, relationships, or shared activities.
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Family origins across generations.
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Evidence created by someone who experienced a time or event.

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Sarah Bagley

1806–1889

Brick buildings of the Boott Cotton Mills in Lowell
Lowell’s Boott Cotton Mills (context image). NPS reports that no known portrait of Sarah Bagley survives. Image source & credit ↗
Massachusetts connection

Lowell

Sarah Bagley came to Lowell in 1837 to work in textile mills. At first she praised aspects of factory life, but her views changed as she experienced demanding conditions and became involved in labor organizing. She helped lead the Lowell Female Labor Reform Association and argued for a ten-hour workday. Bagley wrote, spoke publicly, gathered support, and testified before Massachusetts lawmakers. She later worked as a telegraph operator. Her story shows that people's opinions can change with experience, and that workers used many tools to seek influence over conditions that shaped their lives.

You can use your device’s reading tools or read with a partner.

Find a detail. Build an idea.

  1. What did this person or group do? Point to a detail in the reading.
  2. What unfair rule or practice did this person challenge, and how?
  3. What would you like to find out next? Which kind of source could help?

“Sarah Bagley mattered because ___. A detail that supports my idea is ___.”

Grades 6–8: dig deeper

What sources could help explain why Bagley's views of factory work changed over time?

Follow the evidence.

This short reading is an original classroom summary. Open the source with your teacher to check details and learn more.

Read the source: National Park Service ↗

Ask: Who made this source? What can it tell us? What might it leave out?

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