From Ancestry.com Wiki
THE NILES FAMILY TREE
The Niles name can be traced back to England, where the original spelling was "Nyle." William Nyle married Elizabeth Payne and had a son, John. John was born in 1537 in Dorset, England, and sometime after his birth they came to Braintree, Norfolk, Massachusetts, where the name was changed to "Niles." John married Johane Paviot and the Niles' tree began in the United States.