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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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World map highlighting Gypsum Cave, Nevada

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.

Black & white photo of archaeologist, Beth Parker

“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!

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.

Black & white photo of archaeologist, Bertha Parker at a digging site

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.

Black & white photo of an archaeologist finding a bowl in the ground

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.

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.

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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