Daniel and Julia Hay(e)s Kehoe might have been related to your Kehoes since it was not unusual for brothers to marry sisters in the 18th and 19th centuries. Their sons, John and Tim, settled in Sempronius, NY around 1860. They are buried in the Moravia, NY cemetery and may have been related to Lewis County, NY Kehoes who came to NYS from Wexford via Canada. I have more information on those families if that would be of help to you. I am looking for information on Timothy Kehoe of Wexford who came to NB, Canada in 1814 and information as to who Matthew Keogh's (hung in 1798 in Wexford for rebellion against the crown) relatives might have been.