Hi Stella, Therese Coates Simas (posted original inquiry) was my 2nd cousin & she passed away several years ago. I'm one of the other genealogists in our Coates/Hickey family so I'll be helping to taking over the search. Just uploaded my copy of our tree just under a month ago. Not much time to research, but I'll keep you posted if I find our John Hickey (b about 1825 in Ireland presumably) had a wife Margaret with maiden name Gerraghty. Celbridge and Clane are where our Coates and Hickeys were from. John Hickey ran a Pub in one of those 2 cities, I think it was Celbridge.
Thanks, Felicia Ziomek