COAKLEYS OF CORK - Bandon, St Finbars Cork

My great grandfather was John Joseph COAKLEY, born 1853 at Bandon. His parents were John COAKLEY (farmer) and Ellen MURPHY. They were married in 1845 at Timoleague but I am not sure when they died. I have found the deaths of a John Coakley (1875) and Ellen Coakley (1888) at the Cork Workhouse and bought their death certificates. Their ages are about right. I fear they could be my G grandparents as their respective fathers' names are the same names as their first and second born sons (Matthew Coakley and Timothy Murphy). Of course, this could be a coincidence. I would like to know for sure.

John and Ellen had six sons, the other five are: Matthew - 1847 Ballinhassig; Timothy - 1850 Bandon (Stevedore); Jeremiah - 1855 Ballinhassig; Charles - 1858 St Finbars Cork South (believed to has emigrated to USA); Paul Peter - 1863 St Finbars Cork South (Stevedore - emigrated to Australia in 1909 and died there in 1910).

I would really love to be able to fill in more details regarding my g grandfather's parents and siblings and would apprciate any advice / information as to how to proceed further.

Thank you