I too was researching Peter McKenna and that was the end of the line for that search. I was unable to find any information on his parents or even where he was born. My family thought he was from Ireland, but I can't be sure. The information I have is his DOB, that he was a gardener and that he died on 7-Aug-1861 of asthma and bronchitis. The information on his family is slim to none. Feel free to email me if you would like any other information that I have on Peter's family.