A Henry Ellis, Esquire appears in the 1824 Pigot's Directory
living at 23 Eccles St. Dublin. Under the listing of Nobility and Gentry.
Your Harry would of been 14 at the time, so assume the son of Henry as the address is the same.
1846 Slater's Directory does not have a Henry Ellis or any Ellis at that address on Eccles St. there is however,
William Henry Ellis, Barrister, Ashfield, Rathfarnham,Dublin
You can see these on www.failteromhat.com
Parish church records for the City of Dublin:www.irishgenealogy.ie
there is an RC record for 1810 for
a Catherine Ellis, names are in Latin, father is Henry.
The parish records for Co. Dublin South and Co. Dublin North
are online with an Irish History Foundation, not for profit but fees for records.
You can also view the parish record on a birth of a Henricus (Henry) Ellis 3 Sept, 1872 Charlemont St.
Fa: Joannis (John) Ellis
Mo: Juliae (Julia) O'Brien
Civil Registration for Church of Ireland marriages
Henry Ellis married Elizabeth OCallaghan 9 Sept 1854
St. George, Dublin, Ireland
Fa: James Ellis Fa: Thomas OCallaghan LDS FHL Film#101356
Henry Ellis married Sarah Jane McDonald 12 Nov 1860
St. Paul, Dublin
Fa: Henry Ellis Fa: John McDonald LDS FHL Film #1201416
Families in Irish handed down names through the generations look to their children for clues.