She is regarded as the second Second Lady of the United States following Abigail Adams because Thomas Jefferson, Aaron Burr, and George Clinton were widowers during their tenures as Vice-President.
His work extended into governmental figures in the 1950s, including then-Second Lady Pat Nixon.
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Mary Cyrene Burch Breckinridge (1826–1907), Second Lady of the United States; wife of John C. Breckinridge
Tipper Gore, author, photographer, former second lady of the United States, and the estranged wife of Al Gore