Timothy Dwyer b. 1812(ish)

Hello! I'm looking for any information regarding Timothy Dwyer. He was born around 1812, married to Anna (Hannah?) Ryan, immigrated to the US through New Orleans around 1855. His wife died around that time. I believe he had a brother named Michael. They both settled in Scott County, Illinois. His daughter Catherine married Patrick Winters (who, I believe, was from County Cork). If ahyone recognizes his name, please feel free to get in touch. I've kind of hit a wall in my research.

Carla