Your Mary was being born about the time mine was leaving Inishboifn, Ire. My Mary Tierney b. 1845,Inishbofin, Ire., d. 1922, Berkley, California. We've lost track of her daugher Margaret (Adams) Hull, Margaret's daughters, and one other granddaughter, Aileen Adams.
Do you know Bryan Reichert per chance? His grandmother's brother was a Patrick Tierney that lived in California. Brian says he has a lot of cousins in California.