BLM General Land Office (Federal Land Patents)
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Charles Co., MD books (Heritage Books)
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Charles Co., MD land records index (Requires subscription.)
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Charles Co., MD Microfilm Records (Maryland State Archives)
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GNIS (Yale Geographic Names Information System)
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Illinois State Archives (Land Sales, Marriage Index, Death Index)
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LDS Family Search (International Genealogy Index, Ancestral Files, Library Catalog)
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Library - Allen County Public Library (Fort Wayne, IN)
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Library - DAR Library (Washington, DC)
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Library - Newberry Library (Chicago, IL)
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Library - Southern Maryland Studies Center (La Plata, MD)
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Microfilm Purchase (Maryland State Archives)
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mdroots e-mail list (message archive)
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Rigg Message Board (at Ancestry.com)
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Rigg Family (Patricia Blake's website)
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Riggs Family Genealogy Forum (at Genealogy.com)
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Riggs Message Board (at Ancestry.com)
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RootsWeb Search (WorldConnect family trees, CA and TX deaths)
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Social Security Death Index (at Ancestry.com)
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West Virginia Vital Records (birth, death and marriage records)
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