What resources can I use to try to track GG Grandmother's immigration to the states from Ireland. In the 1910 Census she claims to have immigrated in the year 1900. But in the 1920 Census she claims the year 1901. Her Name was Mary Virginia Regan.. she was born 1885.,,.,so I am guessing her age to be around 15 when she immigrated. Her fathers name was John Regan but not sure if she traveled with him. Grateful to any advise Leigh