Closest match I've been able to locate so far is in the badly faded registers for the RC parish of Leighlinbridge - a Brophy baptism on the 17th November 1867 of a child to William Brophy and Catherine O'Keefe of Royal Oak. The first name of the child is unclear. See here (NLI RC Parish Register) toward the end of the left page. I have not been been able to locate any other baptisms to William and Catherine in this register.
The partial civil records on FamilySearch provide a few better leads with extracted birth records of several children to William and Catherine - including Elizabeth 3rd September 1865, Pierce 14th November 1867 and Anne born 4th November 1869. Several of the entries include references which you can use to order a research cert which will add a few further details, such as occupation of father also date and place of birth, date of registration and name of informant, from the GRO, e.g. the 0462 in the 'address' for Anne is the register page number, which in turn brings you to the full BMD index record :
Name : Anne Brophy
Event Type : Birth
Registration Year : 1869
Registration District : Carlow
Volume : 18 / Page 462
To Order a research cert costing €4 see option 1 on this link on the IrishGenealogy website.