John Roche, born 1886 in Skeheen, County Cork

My grandfather John Raymond Roche was born on 15/4/1886 in Skeheen, County Cork.  However, his birth registration in Mitchelstown on 22/5/1886 has his name as John Joseph Roche.  His mother registered his birth.  His parents were Thomas Roche & Bridget Roche (nee Whelan).  The family was Catholic.  John Roche emigrated to Australia at approximately 14 years of age.  He married Margaret Cecilia Costello (DOB 16/9/1889) in 1928 in Australia.  John and Cecilia had 2 sons:  Thomas William Roche (DOB 9/7/1929) & Patrick Francis Roche (DOB 30/1/1931). Cecilia died on 31/5/1955.  Her documents sometimes name her as Margaret Cecilia Roche.  John died in Australia on 7/6/1965.  All of John's documents name him as John Raymond Roche, apart from his birth registration.  I would be very grateful for any further information.  If possible, I would love to get an address and photo of the house he was born and raised in.  The last known owners of the house were Eileen and Paddy Coughlan.  I believe they are deceased.  Thank you so much for any assistance you can give me.