Letters of Sarah Henrietta Kay, daughter of William Porden and sister-in-law of John Franklin Sarah Henrietta (Henny) Kay, nee Porden (1785-1859) was the daughter of architect William Porden and Mary his wife, and the sister of Eleanor Anne, the first wife of Sir John Franklin. On 5 March 1807 at the church of St Giles in the Fields, Holborn, she married the architect Joseph Kay, her father's assistant at the time. They had at least 8 children, comprising 2 boys (William Porden Kay and Joseph Henry Kay) and 6 girls (Mary Anne, Henrietta Emilia Anna, Ellen Lydia, Eliza Margaret, Sarah Frances and Eleanor Franklin). 1797-1860