I'm told that we used to have some relations in the SF area that another of the great uncles used to visit. Don't know if they were related to you or not. We're still trying to track everyone down. Do you have more information?
Our Tierney's originated on the Island of Inishbofin, Ireland between Co. Galway and Co. Mayo.
My great-grandmother was Mary Tierney, married to John Adams, and they lived in Berkley from 1890 to 1925 by which time both were deceased.