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ILLUSTRATION BY ARIO MURTI

Bertha Parker's Big Find

This Native American archaeologist found an animal skull that changed our understanding of human history

By Dani Leviss
From the October/November 2022 Issue

Learning Objective: Students will summarize how archaeologists use fossils and other information to draw conclusions about past environments.

Lexile: 860L; 680L
Guided Reading Level: S
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JIM MCMAHON/MAPMAN ® 

A dozen explorers set up camp near Gypsum Cave in January 1930. They were searching the cave system near Las Vegas, Nevada, for evidence of what lived there thousands of years ago. Bones, fossils, and artifacts are often preserved in caves. This is because of caves’ stable environment.

Each day, the explorers searched the cave for signs of ancient life. Over several weeks, they found preserved animal droppings, bones, and bits of human-made tools. Back at camp, the crew’s secretary organized the findings. She was a young Native American woman of Abenaki (a-buh-NAH-kee) and Seneca ancestry named Bertha Parker.

A dozen explorers set up camp in January 1930. They were just outside Gypsum Cave near Las Vegas, Nevada. They planned to search the cave system. They wanted to learn what lived there thousands of years ago. Bones, fossils, and artifacts are often preserved in caves. That’s because caves’ environments don’t change much over time.

The explorers searched the cave for several weeks. They looked for signs of ancient life. They found preserved animal droppings and bones. They also found bits of tools made by humans. The crew’s secretary organized the findings back at camp. Her name was Bertha Parker. She was a young Native American woman. She was of Abenaki (a-buh-NAH-kee) and Seneca ancestry.

“THE SLOTH FINDERS,” INCLUDES BERTHA PARKER CODY,LYMAN EVANS, AND MYRTLE EVANS AT THE GYPSUM CAVE SITE, NEVADA, 1930-1931. BRAUN RESEARCH LIBRARY COLLECTION, AUTRY MUSEUM, LOS ANGELES; P.22708 (BERTHA PARKER)

Bertha Parker found a giant ground sloth skull in 1930. It was a clue about when humans arrived in North America.

But Parker was more than a secretary. She had years of experience on archaeological digs. Parker also had a keen eye for spotting ancient remains. The lead archaeologist, Mark Harrington, was married to Parker’s aunt. He hired Parker to work as the dig’s secretary and to help explore.

One day, Parker visited Gypsum Cave by herself. Being smaller than the crew’s men, she could squirm inside cracks that they couldn’t fit through. Peering under a flat rock, Parker spotted a strange skull. What animal was it from? She wasn’t sure, but she thought it was important. It would turn out to be the expedition’s biggest discovery!

But Parker was more than a secretary. She had years of experience on archaeological digs. Parker was also good at spotting ancient remains. The expedition’s lead archaeologist was Mark Harrington. He was married to Parker’s aunt. Harrington had hired Parker to work as a secretary and help explore.

Parker visited Gypsum Cave by herself one day. She was smaller than the crew’s men. She could fit inside cracks they couldn’t. Parker looked under a flat rock. She saw a strange skull. What animal was it from? She wasn’t sure. But she thought it was important. It would turn out to be the dig’s biggest discovery!

Family Trade

Parker didn’t study archaeology in school. In the early 1900s, most professional archaeologists, like Harrington, were White men. Women, especially Native American women, faced barriers to education. Archaeologists sometimes hired Native Americans to join them on expeditions. But they were hired mainly to dig trenches or to share information about their culture.

Parker didn’t study archaeology in school. Most archaeologists in the early 1900s were White men like Harrington. Women faced barriers to education. Native American women faced even more. Archaeologists sometimes hired Native Americans for digs. But they were hired mainly to dig trenches. Or they shared information about their culture.

SMITHSONIAN INSTITUTION ARCHIVES (MARK HARRINGTON)

Bertha Parker’s uncle, archaeologist Mark Harrington, at the entrance to Gypsum Cave in 1930.

Parker’s father was an archaeologist of Seneca ancestry. When Parker was a child, he took her on digs. There, she learned how to recognize ancient tools and animal bones in the dirt.

In 1929, Harrington hired Parker. Back then, many scientific organizations did not fully embrace women. But Parker was accepted by some archaeologists thanks to Harrington’s support. She was eager to get in the field and excavate. That year, she discovered an ancient Indigenous site in Nevada.

Parker’s father was an archaeologist of Seneca ancestry. He took Parker on digs when she was a child. There, she learned how to find buried ancient remains.

Harrington hired Parker in 1929. Many scientific groups did not include women back then. But other archaeologists accepted Parker. That was thanks to Harrington’s support. She was eager to get in the field and excavate. She found an ancient Indigenous site in Nevada that year.

BRAUN RESEARCH LIBRARY COLLECTION, AUTRY MUSEUM, LOS ANGELES; P.23139

Bertha Parker finds a painted bowl in Nevada in 1929.

A Fantastic Find

After finding the unusual skull in Gypsum Cave, Parker took it back to camp. Months later, scientists determined that it belonged to a giant ground sloth. This grass-eating animal was the size of a brown bear. It was one of many animals that lived during Earth’s last ice age, a colder time period (see Ice Age Giants). The sloth went extinct about 10,000 years ago.

Scientists had uncovered giant ground sloth bones before. So what made this discovery important? Parker found the sloth skull at the same depth in the cave where human-made tools were discovered. “In archaeology, items in the same layer of sediment are likely to be from the same time period,” says Desireé Reneé Martinez. She’s an archaeologist and member of the Gabrielino-Tongva community. Parker’s finding suggested that humans lived in North America at the same time as giant ground sloths. This was new information in the 1930s.

By the 1800s, scientists already thought that humans arrived in North America over a land bridge that once connected the continent to Asia (see Humans on the Move). But scientists weren’t sure when humans first came to North America. Parker’s discovery helped show that humans were on the continent more than 10,000 years ago. That was much earlier than what many people thought at the time.

Parker took the unusual skull she found in Gypsum Cave back to camp. It had belonged to a giant ground sloth. That was a grass-eating animal the size of a brown bear. The sloth lived during Earth’s last ice age, a colder time period (see Ice Age Giants). Giant ground sloths died out about 10,000 years ago. 

Scientists had found giant ground sloth bones before. So what made this one important? Parker found the sloth skull in the same layer of dirt as human-made tools. “In archaeology, items in the same layer of sediment are likely to be from the same time period,” says Desireé Reneé Martinez. She’s an archaeologist. She’s also a member of the Gabrielino-Tongva community. Parker’s finding suggested something. Humans likely lived in North America at the same time as giant ground sloths. This was new information in the 1930s. 

Scientists already thought humans arrived in North America over a land bridge. It once connected the continent to Asia (see Humans on the Move). But scientists weren’t sure when humans first crossed the bridge. Parker’s discovery helped show that humans were on the continent more than 10,000 years ago. That was much earlier than what many people thought at the time.

Keeping Records

Parker’s find was big news across the country. Some were surprised that a woman had made the discovery. “Girl Leads Scientists to Nevada Prehistoric Find,” read one news article headline.

Despite facing obstacles in her life, Parker became one of the first female Native American archaeologists. She analyzed artifacts at the Southwest Museum of the American Indian in California. She also studied active Indigenous societies. Later, she advised filmmakers about Indigenous culture and hosted a TV show about Native American history.

But over time, Parker’s work was largely forgotten. “Bertha Parker is such an unsung hero,” says Joe Watkins. He’s an archaeologist of Choctaw ancestry who has studied Parker. Recently, Watkins, Martinez, and others have brought attention to Parker’s accomplishments. They created a scholarship in her name for Indigenous students. “Bertha Parker is a model for doing what you love, no matter what,” says Martinez.

Parker’s find was big news across the country. Some were surprised a woman had made the discovery. “Girl Leads Scientists to Nevada Prehistoric Find,” read one news article headline. 

Parker faced many challenges in her life. Yet she became one of the first female Native American archaeologists. She studied artifacts at the Southwest Museum of the American Indian in California. She also studied active Indigenous societies. Later, she advised filmmakers about Indigenous culture. She also hosted a TV show about Native American history. 

But Parker’s work was largely forgotten over time. “Bertha Parker is such an unsung hero,” says Joe Watkins. He’s an archaeologist of Choctaw ancestry who has studied Parker. Watkins, Martinez, and others have brought attention to Parker’s work in recent years. They created a scholarship in her name for Indigenous students. “Bertha Parker is a model for doing what you love, no matter what,” says Martinez.

video (1)
Activities (3)
Quizzes (1)
Answer Key (1)
Step-by-Step Lesson Plan

1. ENGAGE: Discuss fossil evidence for extinct animals.

  • Display a photo of a tree sloth. Ask for students to put their thumbs up if they agree and thumbs down if they disagree with the following statements: 1) There used to be sloths living in what is now the United States. 2) There used to be sloths here that were bigger than you. Discuss their ideas.
  • Show the illustration of a giant ground sloth (p. 15). Explain that this animal is extinct, but scientists know it used to live here. Ask: What evidence do you think scientists have that this animal existed? Discuss fossil evidence of animals—like bones, footprints, and droppings.

2. EXPLORE: Watch a video showcasing Ice Age animals and the fossils they left behind.

  • Play the video “Animals of the Ice Age.” Explain that the giant ground sloth also lived during the Ice Age. Replay the last 30 seconds of the video without sound, pausing to identify the kinds of fossilized evidence (e.g., teeth, claws, bones like a skull or jawbone, and tusks)
  • Ask: Where and how do scientists find these fossils? (Fossils are commonly found underground or in rock layers or inside caves. Sometimes people dig for fossils in likely places. Sometimes fossils are found by chance.) Explain that students are going to learn about one fossil discovery that changed scientists’ view of the past.

3. EXPLAIN: Analyze and summarize an article about Bertha Parker and her important fossil discovery.

  • Share the My Notes skills sheet with students. Read the article aloud. As you read, work together to take notes.
  • After reading, discuss the article’s main idea. Let students finish the skills sheet in pairs.

4. EVALUATE: Cement understanding of core science ideas with a low-stakes assessment.

  • Have student pairs complete the article’s Quick Quiz. Discuss their answers as a class.
  • Ask: Why was Parker’s discovery so important? How did it change scientists’ understanding of human history? (It was evidence that humans lived in North America much earlier than was thought at the time.)

5. EXTEND: Interpret a map showing likely migration routes into the Americas.

  • Show students a modern map centered on the Pacific Ocean. Explain that the ancestors of Native Americans came to this continent from Asia. Ask: Where could they have crossed? Explain that Asia and North America were once connected by land that scientists call Beringia.
  • Preview the Coming to North America map skills sheet and read the map key together. Connect Beringia to the current world map. Discuss how the world looked different 20,000 and 10,000 years ago, as both the article and video show. Have students complete the skills sheet in pairs.

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