[1] She grew up in the high society of early 18th-century Philadelphia, and her siblings and she were treated by General George Washington as "if they were his own children".

He courted her by inviting her as his escort to The Mischianza, a fête on May 18, 1778, that he helped plan in honor of Sir William Howe.

[2] André presented Peggy Chew with a souvenir manuscript of the evening and poetry upon his departure from Philadelphia.

[1] Peggy would reminisce about André's courting of her to her husband, John Eager Howard, which would infuriate him.

[1][6] They would host a number of distinguished guests at the Belvedere, including George Washington, Charles Carroll of Carrollton, Samuel Chase, Roger B. Taney, Marquis de Lafayette, and Generals Gist, Smallwood, and Williams.