I M Looking for Patrick Shea and His Parents Murty Shea and Mary Duggan IN the Early 1800s IN Ireland

The information I have on Patrick is that he was born about 1819 in Ireland. His parents were Murty Shea and Mary Duggan.
He emigrated to Victoria, Australia but not sure what year. Maybe around 1853.

He married Margaret Foran near Castlemaine, Victoria on the 2/10/1855. They lived in Brunswick, Victoria until he died on the 13/5/1872. He had 4 children, Mary Ann who died when 2 yrs of age, John who married Annie Maria Burton, Catherine (Katie) and Maggie who married Arthur Ernest Nelson. They all lived in Victoria.

I am wanting to find out what part of County Kerry he came from. Also what year and what ship he emigrated to Australia. He could've been an only child but would like to know if he did have siblings. Patrick has become a real mystery and hoping someone out there might have some information on him or his family.

Thank You