1. 013. Hetty B. Heyward to Mother-in-Law -- September 11, 1816 Date: 1816-09-11 Description: Letter from Hetty Heyward to her mother-in-law, Mrs. Nathaniel Heyward. Hetty thanks her mother-in-law for various gifts and asks her to send flannel, candles and other sundry items. 4p.