There is an Ancestry Tree for a man with this marriage, but there are no eferences. The tree claims abuse of his wife, divorce, and him going to Australia and dieing a rich man there.
If this is true then his claimed birth to RIC of Limerick is suspect. From police records, it may have been Cork. But the name is just too common to get anywhere
1880 Jul 11. born Limerick
1912 Aug 5 married Hannah Lewis (nee Gould)
1914 Apr/Jun son Colin Lewis McCarthy born Swansea
1921 Feb 10 enlisted with RIC no 78752. ex-soldier & caterer
1921 Oct 14 Resigned - wife's illness