Grace Crowden was the daughter of Lawrence Crowden, a prominent Pennsylvania Quaker political leader. In 1753, she married Joseph Galloway, a wealthy merchant and lawyer from Maryland, with whom she had four children. Joseph Galloway remained loyal to the British crown during the American War of Independence. During the British occupation of Philadelphia, he was appointed superintendent of police and head of the civil government. However, when British forces evacuated the city in 1778, he and the couple's only surviving daughter fled to England. Grace remained behind in the belief that the British would prevail and the hope that she could protect the family property from confiscation by the American government. She failed to do so, and her health declined rapidly. She died without seeing her husband or daughter again. Grace Galloway kept a private diary of her activities, which was edited and published posthumously as The Diary of Grace Crowden Galloway: Journal Kept June 17, 1778 Through September 30, 1779 (1971).