Yes, he is buried in Queens, with Mary Cronin their mother.
Per the headstone, John Dunckley was from Bruff, County Limerick, Ireland; and Mary was from Oysterbed, County Kerry. Kevin and I and my sisters and Mom are going to visit these locations in May.
Kevin and I are in contact regularly, so I cannot wait to see any pictures you might want to share. :)
If you want, please view my tree, as I have some pictures saved as well.

Hope to talk to you soon.
Mary
marywsanchez@live.com