Degnan and Seward

I have been researching ancestral grandparents on my dad’s side. John Degnan born around 1800 in Ireland at some point moved to Yorkshire, England. He married Cecelia? Seward also from Ireland, and had several children in England, most of which  moved to Chicago where my father is from. His wife Cecelia  also moved to Chicago at an older age, guessing after he had passed away. This is all I know about him and his wife. Appreciate anyone who might know of them possibly.