Sullivan and Lyons from County Kerry

My great grandfather was John H. Sullivan.  Family has always said he was born in Co. Kerry. His tombstone here in Blue Earth, MN, USA says he was born in 1832 in Ireland. Don't have a year for his immigration but it was sometime before the US Civil War.  He died in MN in 1897.  Family also always said his mother was a 'Fitzgerald'', his father was also John H. Sullivan and he had a sister Julia.  But there is no record of direct contact with any of these other family members. John H. Jr. came to Boston where he is said to have stayed with a relative who was a seamstress and then settled in Ohio working on a riverboat. In July 1855 he married Julia Lefund Lyons, also born in Kerry in 1838.. Her father was John Lyons and her mother is listed in US census as Hannorah Murphy Lyons.  John and Hannorah are thought to have had about 17 children.  .The Lyons family is thought to have come to the US about 1850 and settled in Ohio.

If any one can help me find the correct Sullivan and Lyons family in Ireland, I would be SO thrilled. .  

Wilma Sullivan Bittinger.