Harriet married Sidney William Seyfang, son of George Bond Seyfang and Elizabeth Mihill, on 31 Oct 1870. (Sidney William Seyfang was born on 27 Apr 1841 in Camberwell 105, christened on 19 May 1841 in St Giles Camberwell 62, died on 29 Mar 1896 in Ss Magdalena, Off Cherbourg, France and was buried at sea.)