I have checked our family tree and there is a William Kiely, which changed to the spelling Kiley by 1900, who was born in about 1858 in Upper Prospect. Curiously there are a number of Martins and Walshes living in the village at the time. When I saw the spelling of the name you gave, I thought Martin was a likely alternative. There are also Merlins living in the village as well. This seems very interesting because William appears in the 1891 census at 33 yrs of age, but disappears from Upper Prospect before the 1901 census.