Nora, could you please ask the question again? I believe you have the daughters of Thos Scarff & Eleanor Kewley mixed up. Do you mean Jane, who (I think) was married to Thomas Moore, or Margaret who (I think) is the one married to John Moore. The words "I think" are there because I did this research a long time ago, and my notes indicate I wasn't 100% positive about the conclusions at the time.
The John Scarff who married Ann Kelly was the next younger brother of Thomas h/o Eleanor Kewley. John also had daughters named Jane & Margaret, amongst others. Both brothers died in 1839.