| Frontier and pioneer life -- Wyoming. Matches 2 items |
| Frontier and pioneer life -- Yukon -- Klondike River Valley. Matches 1 item |
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Frontier children -- Great Plains -- Biography. SEE: Pioneer children -- Great Plains -- Biography. Matches 1 item
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Frontier children -- Great Plains -- History -- 19th century. SEE: Pioneer children -- Great Plains -- History -- 19th century. Matches 1 item
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| Frontier County (Neb.) Matches 1 item |
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Frontier hypothesis. SEE: Frontier thesis Matches 12 items
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Frontier patrols. SEE: Border patrols Matches 1 item
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Frontier patrols -- Mexican-American Border Region. SEE: Border patrols -- Mexican-American Border Region. Matches 4 items
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| Frontier thesis. Matches 12 items |
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Frontier Wars, South Africa, 1811-1878. SEE: South Africa -- History -- Frontier Wars, 1811-1878 Matches 1 item
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