looking for Flynn & Kelly Connections & records

Hi there  I am looking for connections to James Flynn believed to have been born in 1863 at French park Roscommon, his parents were believed to be James FLYNN &  Nancy nee KELLY. son James was a stable hand for Lord Du Freyne at French Park, it is believed that it was in 1882 (aged 19) he left Ireland and came to New Zealand, he is my great grandfather, I would like to find out more, his Mother Nancy Kelly was apparently a dancer. I appreciate all help given Thank you  Maureen O'Connor NZ