There are these 3 entries showing on Family Search 
www.familysearch.org  Nothing for Charles though. Can't easily see anything for him either in Wicklow on 
https://civilrecords.irishgenealogy.ieTerence Maguire
Birth 12 March 1864 
Kiltegan, County Wicklow, Ireland 
Parents Patrick Maguire, Mary Connel
Mary Maguire (twin?)
Birth Registration  Baltinglass, County Wicklow, Ireland 
Birth 12 March 1864  
Parents Patrick Maguire, Mary Connel Maguire
Elizabeth Maguire
Birth 13 November 1866 
Kiltegan, County Wicklow, Ireland 
Parents Patrick Maguire, Mary Connel
The family were RC? There is a RC baptism for daughter Elizabeth on 18 November 1866 Dunlavin, County Wicklow.
Monica