Patrick and Mary S Children

Hit the enter button too quick, oops! But anyways, here are their children: 1850 Census Lasalle co Ill:

Daniel age 17
Dennis age 13
Ann age 11
Michael age 9
Ellen age 6
Bridget age 4
Mary age 1 (b. 1848, in Ill)

All the children were born in Ireland, with the exception of Mary.
Any of this sound familiar? Their last name was changed, it could have been one of the following:
GUINTY, GINTY, MCGINTY, MACGINTY (probably not the last two)