Margaret Henderson was born in 1838.1 Margaret Henderson's father was Hancock Lee and her mother was Mary Henderson. Her paternal grandparents were Kendall Lee and Judith Burton Payne; her maternal grandparents were James Henderson and Mary Ogleby. She had a brother and a sister, and also seven siblings of unknown gender, named James Kendall, Charlotte, ?, ?, ?, ?, ?, ? and ?. She had a half-sister, and also three half-siblings of unknown gender named Juliet, ?, ? and ?. She died at the age of 77 in 1915.1