I don't have any specific information on a George Thomas Eagar in Oakland, but I have some information that may be helpful. A Thomas Eagar b.1 Mar 1830 sailed to San Francisco in 1846 with his mother, brother, and sisters. Thomas appears to have married Angeline Merrill in Oakland on 7 Sep 1854 and died 21 October 1900. Thomas was probably the only male Eagar in the San Francisco area in the mid-1800s since his only brother John travelled to Utah in 1847 or '48 and left no children in California. I descend from John. George Thomas MAY have been Thomas' son. There's plenty of Eagar information going back to the 1600s if you can make the link between George Thomas and Thomas. I have some other random information on Thomas Eagar if you want it - just e-mail me and I'll send it your way.