Yes this is correct I want to find out more info on them and their families but dont know where to start. Thanks for everybody's help and sorry for the late reply.
Are you wanting to go back from the couple to their parents, siblings etc or forward ie the children etc from these parents?
Either way the names of the children in date order may give you a clue if the couple followed the traditonal Irish naming pattern for children.
The marriage certificate is usually a bit more informative than the one Sinann has found
Father's name not given but notation Dead is written
Father's name for bride is given Dead Martin.
Sinann has given you the link to the Sandyford parish registers. You can also look on
https://www.irishgenealogy.ie/search/I find Family Search can be useful as well
https://www.familysearch.org/enWhich of those have you searched so far?
The rule of thumb for searching for ancestors is to do a step by step search back from you. If you do it this way you can usually find clues in witness names etc for BM and registration names for births.