Vonny:
Welcome to Ireland Reaching Out!
I checked the subscription site Roots Ireland and neither marriage was on their data base which leads me to conclude that the marriages were not held in Drumlane RC where marriage records are available starting 1837. Likely the marriages occurred in the Kildallen RC records where marriage records start in 1867.
I did find the following baptismal records for children of Dominick McKeegan and Mary Martin: John 1865 James 1868 Ellen 1873 Thomas 1877
Did this family emigrate?
Roger McDonnell