Do you have a date of birth for your Owen and Jane or know if he had a brother named Owen? My G-G-Grandfather was Owen J. Duffy b. 1811 in County Monaghan married in 1845 to Jane Savage b. 1826. We are not absolutely certain of her last name or dates. The info she gave on later census documents changed from year to year. His middle initial and place of birth is inscribed on his headstone and found on other documents so I believe it is correct. They immigrated to the United States in approximately 1850. Any chance of a connection here?