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Harriet Tracy was born on Dec 6 1834 in Charleston, South Carolina.Her parents were William Brisbane and Julia Hall Lowndes
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Harriet Tracy got married in 1860. She married Cadwallader Colden Tracy.
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Harriet Tracy made the crib attachment in Feb 25, 1868 and it helped all crib owners.
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The gravity elevator was chosen for a patent because it had automatic platforms that kept it safe. It also helped people get up and down faster.
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She made the lock-stich and chain sewing machine that held up to 1,000 yards of string.
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She died May 30, 1918 from old age.
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