Regan/Reagan family from Skibbereen and the islands area of Co. Cork-Who is Joseph Regan?

Hi,
I'm Dianne and I'm trying to connect with any Reagan/ Reagan relatives from the Skibbereen and Sherkin Island areas in Co. Cork. My ancestor was Joseph Regan, who married Sarah Goslin from Sherkin Island. Joseph Regan was the son of James Regan and his mother was Margaret.
Joseph and Sarah left Ireland from Cobh in 1851, on the "Bark Swift"; the Captain was John Leslie and the ship was registered from North Shields, England.
Sarah Goslin Regan was baptised in 1822 on Sherkin Island, and her parents were James Goslin(Goslan) and Ellen Moynihan. Where do I go from here?
I live in a very remote part of Spain, and I hope someone , some where can help me solve the rest of this story and puzzle!!! Who is Joseph Regan, born in Ireland in 1821?
Thank you,
Dianne Reagan