Mary was born about 1855 in Maryland, the daughter of Charles Henry Key and Elizabeth Lloyd.
She has died but the date and place are unknown.
Mary T Key (c1855-?)
Charles Henry Key (1827-1869)
Francis Scott Key (1779-1843)
John Ross Key (1754-1821)
Phoebe Ann Dagworthy Penn Charlton (1756-1830)
Mary Tayloe Lloyd (1784-1859)
Edward IV Lloyd (1744-1796)
Elizabeth Gwynn Tayloe (1750-1825)
Elizabeth Lloyd (1827-1881)
Edward VI Lloyd (1798-1861)
Edward V Lloyd (1779-1834)
Sally Scott Murray (1775-1854)
Alicia Thompson McBlair (1806-1838)
Michael McBlair (1773-1861)
Pleasance Goodwin (1780-c1836)