The information that I have on John Ashley is very sketchy, but maybe it will help you.
I have a Mary Bodkin (born April 25, 1841) who married Richard Ashley. I have no dates or places on them. They had a son born John Ashley in 1859.
Mary's parents were Henry Bodkin born Jan 25, 1811 in Yalding, Kent, England and died April 10, 1905 in Tunbridge Wells, Kent England. He married Sophia Penn, July 13, 1839 in Yalding, Kent.