| United States -- Boundaries -- Mexico. Matches 3 items |
| United States. Bureau of Chemistry -- Officials and employees -- History. Matches 1 item |
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United States. Bureau of Citizenship and Immigration Services. SEE: United States. Immigration and Naturalization Service Matches 2 items
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United States. Bureau of Customs and Border Protection. SEE: United States. Immigration and Naturalization Service Matches 2 items
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United States. Bureau of Immigration. SEE: United States. Immigration and Naturalization Service Matches 2 items
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United States. Bureau of Immigration and Customs Enforcement. SEE: United States. Immigration and Naturalization Service Matches 2 items
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United States. Bureau of Indian Affairenun -- History. SEE: United States Bureau of Indian Affairs -- History Matches 1 item
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United States. Bureau of Indian Affairs. Albuquerque Indian School -- History. SEE: Albuquerque Indian School -- History. Matches 1 item
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| United States Bureau of Indian Affairs -- History. Matches 1 item |
| United States. Bureau of Light-Houses -- History. Matches 1 item |