Lady Mary Cornwallis
Lady Mary Cornwallis was the daughter of General Charles Cornwallis and Jemima Jones. Born in 1769, she eloped to Scotland with Guards officer Mark Singleton in 1785, prompting alarm in family correspondence; a further ceremony followed in London. John Smart painted her miniature in 1793. She survived her husband, who died in 1840, and contemporary notices place her own death in London in 1857. Some later genealogies and a museum title instead give her death as 1840.
EARLY LIFE
The exact date and place of Lady Mary Cornwallis’s birth have not been established in the source used for this entry. The surviving biographical summary provides only limited evidence about childhood, schooling, and the daily circumstances of the household, so those details are not reconstructed here without documentation. What can be stated securely is that this person belonged to the interconnected family world from which HistoryGPS traces participants, relatives, and later descendants of the Revolutionary generation.
No distinct public profession or office for Lady Mary Cornwallis is established by the source summary used for this entry. The surviving record is primarily genealogical and documents family identity rather than an independent public career. Additional claims about employment, public service, or accomplishments have been omitted where the consulted source did not support them.
CAREER
DEATH
Mary Cornwallis died on May 26, 1857. Lady Mary Cornwallis was the daughter of General Charles Cornwallis and Jemima Jones. Born in 1769, she eloped to Scotland with Guards officer Mark Singleton in 1785, prompting alarm in family correspondence; a further ceremony followed in London. John Smart painted her miniature in 1793. She survived her husband, who died in 1840, and contemporary notices place her own death in London in 1857. Some later genealogies and a museum title instead give her death as 1840. The available account does not establish a medical cause or a dependable sequence of final symptoms and care.
POPULAR BIOGRAPHIES
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