Thanks, leagen, that explains it :-)
Still looking at the LDS site - I found a couple of potential children:
Adelade Keating, born 30 Aug 1877, bapt 01 Sep 1877 St Patrick, Elizabeth, Union, New Jersey, father Terance Keating, Mother Mary Mccrink
and
Catherine Anna Kating, born 4 Feb 1879, bapt 9 Feb 1879 St. Patrick, Elizabeth, Union, New Jersey, father Terance Kating, mother - Mccrank