Hi Karen , I am in touch with someone else who is researching this family , there are problems with exact family names , Sayle is also Fayle and Fell , Kennah is also Kenna, Kenney and KEANNEY , so the marriage of John Keanney and Margaret Fayle is July 4, 1805. Nelson's brother William had child Nelson born 1877 in Liverpool. My friend is researching Nelson's sister Charlotte , although we can't find her birth. John Keanney/Kennah died before 1841(which we also can't find), Margaret is alone on 1841 census with sons William and Joseph , and daughter Ann . Margaret remarries William Craine in 1843 , but she is a widow again in 1851 , living with her son Joseph in Liverpool .