Thanx again Shane,
I have details for 1911 census but not the 1901 census. Joseph had remarried by then with Mikey aged 16 still at home. Is the 1901 census available anywhere?
the 1901 data is due to be added sometime this year on the National Archives website.
I had another look at he Civil Index and the possible parish record for Michael - I am assuming that the address should read Cumberland St. There are two streets in Dublin city with that name - one near to Westland row in the south of the City and the other near to Parnell St on the Northside. The possible 1894 index record is in the Dublin South district :
Name: Michael Finn
Registration district: Dublin South
Record type: Birth
quarter and year: Oct - Dec 1894
Volume: 2 / Page: 560
the next closest match by date is in Apr-Jun 1896
Shane