https://www.californiafrontier.net/
The California Frontier Project - Discover California History
Discover California History
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https://www.boisestate.edu/news/2022/11/28/updated-timeline-for-next-frontier-project/
Updated timeline for Next Frontier Project - Boise State News
Nov 29, 2022 - The Next Frontier Project is working to develop an improved university data infrastructure and associated...
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https://gutenberg.org/ebooks/45240
Frontier Ballads by Joseph Mills Hanson | Project Gutenberg
Free eBook digitized and proofread by volunteers.
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https://gutenberg.org/ebooks/subject/15725
Books about Frontier and pioneer life -- Northwest, Old - Project Gutenberg
Project Gutenberg offers 78,493 free eBooks for iPhone, iPad, Kobo, Android and Kindle.
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https://www.gutenberg.org/ebooks/12454
France at War: On the Frontier of Civilization by Rudyard Kipling | Project Gutenberg
Free eBook digitized and proofread by volunteers.
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