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it is illinois marriage index
Sneed,William m. Stapleton,Lucinda 2-21-1847 in Clark Co.,IL
notice Jane Steepleton (16 yo F) in William & Lucinda's census.
Steepleton, Elijah m. White, Lucindy 5-4-1830 or 5-1-1830 Edgar Co.,IL.
Therefore other families named White and were born in Lawrence, SC might be relatives of Lucinda.