Tracing family Mooney

I am trying to find out more about the Mooney family who lived in Williamstown Blackrock and Booterstown during the 1800's and early 1900's . Due to not finding many available records I don't know whether or not I have any living Irish relatives .The main family members are the eight children of Charles and Rose Mooney who were married in Enniskerry in 1841. My paternal great grandmother was their last born Mary Mooney who was born in 1862 . She married in Blackrock in 1883 and moved to England with her soldier husband Francis Kennard. Unfortunately she died whilst only in her 40's. Charles was a gardener and he and Rose both died in Blackrock. I have found the birth and death records for one of their sons Charles who married a Bridget Mangan . Strangely they had two sons named Charles but I can only find one death record. There was also Michael Mathew , a John and a Peter plus a Catherine who I think married Andrew Mannion and an Anne who may have married a Joseph Lyons . There was also a Mary Anne . Does any one please have any more information on this family? Frances