This looks like them in the 1911 Census:
http://www.census.nationalarchives.ie/pages/1911/Wexford/Ardcavan/Ballytramon/694009/James is shown as age 49 which would put his birth approx 1862, before Civil Registration. His wife Catherine is 29, b approx 1882. You should find her maiden name from your grandfathers birth cert and be able to find her on
http://pilot.familysearch.org/recordsearch/start.html#c=1408347;p=2;t=searchableJames also has a brother Robert living with him in 1911. Robert is aged 47 and born about 1864 so he might be registered. Only possible match I can see for Robert Flood, Wexford is
Name: Robert Flood
Registration district: Enniscorthy
Record type: DEATHS
Registration date - quarter and year: Jan - Mar 1945
Estimated birth year: 1865
Age: 80
Volume: 4
Page: 359
If I’m on the right track, this should be your grandfathers birth:
Name: Michael Flood
Registration district: Wexford
Record type: BIRTHS
Registration date - quarter and year: Oct - Dec 1903
Volume: 4
Page: 657
The only Anastasia Harman I can see is:
Name: Anastasia Harman
Registration district: Wexford
Record type: BIRTHS
Registration date - quarter and year: Jan - Mar 1907
Volume: 4
Page: 694
I’m not clear on where you mean by Yole Town.
I found their marriage:
Name: Michael Flood
Name: Anastasia Harman
Registration district: Wexford
Record type: MARRIAGES
Registration date - quarter and year: Apr - Jun 1926
Volume: 4
Page: 378
If you want to order birth or marriage certs for any of the above you can download the form from:
http://www.groireland.ie/apply_for_a_cert.htmPut the following info anywhere on the form it will fit: Name, Registration district,
Registration date - quarter and year, Volume and Page. Order a research copy and it will cost €4 each.
Best wishes with your search.
Dara.