McCormick/Furlong

for reference - to add a timeframe for this family, here's a likely match for this Furlong Family on the 1911 census at Wall Lane in Wexford town, and at Mary Street Wexford town in 1901.

Here's that McCormack/McCormaick family at John's Gate Street Wexford town in 1911, and the same household at John Street, Wexford in 1901.

To trace forward from these searches of possible marriages, births and deaths would be required to establish some clues such as relationships, occupations, addresses etc. Records of births are only available online (see IrishGenealogy.ie) up to about 1917, but civil registers of marriage are online up 1943, and deaths to 1968.

Furlong is a common surname in county Wexford so probably best to start with the children with less common names - e.g. Susan,  Christina etc. The search gets more complex if they move away from Wexford town, or emigrate..as there can be fewer clues to help confirm or rule out possible matches. Note : middle names do not usually appear on the IrishGenealogy search index.

I had a quick look for marriages of any of the Furlong children and found one good match - Andrew Furlong married a Mary Frances Murphy In Wexford RC on the 24th August 1931 - his father is shown as Andrew Murphy Cattle dealer, which matches that of the Andrew Furlong snr. on the 1901 & 1911 census returns.

Edited to add :

another marriage - James Wilson and Elizabeth Furlong 10th May 1934,  Wexford Town - father of the bride Andrew Furlong occupation Cattle Dealer.

a check for deaths of the parents found a good match for Susan Furlong (nee Mc Cormack) in 1939, reported as wife of a cattle dealer - the informant is an Elizabeth Wilson of the same address (Duke St.), probably her daughter mentioned above..