Jane Irwin Harrison

Jane Findlay Harrison was the acting first lady of the United States from March 4 to April 4, 1841, during the presidency of her father-in-law William Henry Harrison. She was the widow of his son William Henry Harrison Jr. and took the position as a substitute for the president's wife, Anna Harrison, who was unable to travel to the White House before his death. Harrison was only acting first lady for thirty days, as the president died in office after this time. Her sister Elizabeth was the wife of William Jr.'s brother John Scott Harrison and mother of President Benjamin Harrison.