Daniel Parke Custis was an American planter and politician who was the first husband of Martha Dandridge. After his death, his widow, Martha Dandridge Custis married George Washington, who later became the first president of the United States.

Eleanor Calvert Custis Stuart, born Eleanor Calvert, was a prominent member of the wealthy Calvert family of Maryland. Upon her marriage to John Parke Custis, she became the daughter-in-law of Martha Dandridge Custis Washington and the step-daughter-in-law of George Washington. Her portrait hangs today at Mount Airy Mansion in Rosaryville State Park, Maryland.