Question: Who did Honora Edgeworth decline the hand of, even as she had a romantic engagement with a British Army officer hanged as a spy by the Continental Army?

Context articles: Honora Sneyd
Middlebrook encampment
Thomas Hickey (soldier)
5th North Carolina Regiment
Francis Marion
Benjamin Lincoln
Henry Jackson (general)
Commanding General of the United States Army
John André
André (play)

Honora Edgeworth ("née" Sneyd; 1751 – 1 May 1780) was an eighteenth-century English writer, mainly known for her associations with literary figures of the day particularly Anna Seward and the Lunar Society, and for her work on children's education.
 Sneyd was born in Bath in 1751, and following the death of her mother in 1756 was raised by Canon Thomas Seward and his wife Elizabeth in Lichfield, Staffordshire until she returned to her father's house in 1771.
 There, she formed a close friendship with their daughter, Anna Seward.
 Having had a romantic engagement to John André and having declined the hand of Thomas Day, she married Richard Edgeworth as his second wife in 1773, living on the family estate in Ireland till 1776.
 There she helped raise his children from his first marriage, including Maria Edgeworth, and two children of her own.
 Returning to England she fell ill with tuberculosis, which was incurable, dying at Weston in Staffordshire in 1780.
 She is the subject of a number of Anna Seward's poems, and with her husband developed concepts of childhood education, resulting in a series of books, such as "Practical Education", based on her observations of the Edgeworth children.
 She is known for her stand on women's rights through her vigorous rejection of the proposal by Day, in which she outlined her views on equality in marriage.
The Middlebrook encampment was a seasonal encampment of the Continental Army during the American War for Independence near Middle Brook in Bridgewater Township, New Jersey (between Martinsville and Bound Brook) in 1777 and again in 1778–79.
 The site includes part of the ridge of the First Watchung Mountain.
 Its position provided a natural fortress not only protecting the Continental Army but also overlooking the plains towards New Brunswick, where the British forces were stationed in 1777.
 The strategic strength of the position contributed ultimately to the success of the Continental Army by lengthening the war and wearying the British forces.
Thomas Hickey (hanged on June 28, 1776) was a Continental Army soldier in the American Revolutionary War, and the first person executed for treason against what would become the United States.
 Born in Ireland, he came to America as a soldier in the British Army and fought as personal assistant to Major General William Johnson in the Seven Years' War, but deserted to the other side when the Revolution broke out.
 He became part of the Life Guard, which protected Gen. George Washington, his staff and the Continental Army's payroll.
 Hickey was jailed for passing counterfeit money in New York, tried and executed for mutiny and sedition, and he may have been involved in an assassination plot against George Washington in 1776.
The 5th North Carolina Regiment was assigned on March 26, 1776, to the Continental Army in the Southern Department.
 It was organized in the spring of 1776 at Wilmington, North Carolina, as eight companies of volunteers from the districts of New Bern, Edenton and Hillsborough of the colony of North Carolina.
 On 5 February 1777, the regiment was assigned to the main Continental Army and assigned to the North Carolina Brigade on 8 July 1777.
 The regiment was reduced to a cadre on 1 June 1778 at Valley Forge, Pennsylvania and was assigned to the Southern Department.
 The regiment was re-organized to nine companies during the fall of 1778 at Halifax and assigned on 11 January 1779 to Sumner's Brigade.
 On 3 June 1779, this brigade was redesignated as Armstrong's Brigade.
 The regiment was captured by the British Army on 12 May 1780 at Charlestown, South Carolina and was officially disbanded on 1 January 1781.
Francis Marion (c. 1732 – February 27, 1795) was a military officer who served in the American Revolutionary War.
 Acting with the Continental Army and South Carolina militia commissions, he was a persistent adversary of the British in their occupation of South Carolina in 1780 and 1781, even after the Continental Army was driven out of the state in the Battle of Camden.
Benjamin Lincoln (January 24, 1733 (O.S. January 13, 1732) – May 9, 1810) was an American army officer.
 He served as a major general in the Continental Army during the American Revolutionary War.
 Lincoln is notable for being involved in three major surrenders during the war: his participation in the Battles of Saratoga (sustaining a wound shortly afterward) contributed to John Burgoyne's surrender of a British army, he oversaw the largest American surrender of the war at the 1780 Siege of Charleston, and, as George Washington's second in command, he formally accepted the British surrender at Yorktown.
Henry Jackson (bapt.
 October 19, 1747 – January 4, 1809) was a Continental Army officer from Boston, Massachusetts during the American Revolutionary War.
 For most of the war he was colonel of Jackson's Additional Continental Regiment, which was redesignated the 16th Massachusetts in 1780.
 He commanded the last regiment of the Continental Army, the 1st American, which was disbanded in 1784.
 Jackson was a lifelong friend of Henry Knox another Continental Army officer, whose business affairs he was also heavily involved in.
Prior to the institution of the Chief of Staff of the Army in 1903, there was generally recognized to be a single senior-most officer in the United States Army (and its predecessor the Continental Army), even though there was not a statutory office as such.
 During the American Revolutionary War (1775–1783), the title was Commander-in-Chief of the Continental Army.
 In 1783, the title was simplified to Senior Officer of the United States Army.
 In 1821, the title was changed to Commanding General of the United States Army.
 The office was often referred to by various other titles, such as "Major General Commanding the Army" or "General-in-Chief."
John André (2 May 1750 – 2 October 1780) was a British Army officer hanged as a spy by the Continental Army during the American Revolutionary War for assisting Benedict Arnold's attempted surrender of the fort at West Point, New York to the British.
André; a Tragedy in Five Acts is a play by William Dunlap, first produced at the Park Theatre in New York City on March 30, 1798, by the Old American Company, published in that same year together with a collection of historic documents relating to the case of the title character, Major John André, the British officer who was hanged as a spy on October 2, 1780, for his role in the treason of Benedict Arnold.
 The play does not go into the historic details, but rather presents a fictionalized account of the American debate over whether to spare or hang him.
 Only three characters in the play are historic: André himself, George Washington (referred to throughout the text, except once in a passage inserted between the first two performances, simply as "The General"), and Honora Sneyd, who had been briefly engaged to André ten years earlier under the auspices of Anna Seward, who had done much to romanticize the affair in her Monody on Major André of 1781.
 (Actually, Honora Sneyd had died of consumption some months before André's death, and never went to America.)