A bit late to the game here... but I am also in the Bay area.
As for the genealogy:
My father was Albert Edward Erhard - born in MT but lived most of his life in Colorado.Of his 8 brothers and sisters, I've met most of them, but not all, and haven't been too much in touch of late. Most of my surviving aunts and uncles are scattered across the western states (WA, ID, MT, OR, CA).
My paternal grandfather was also named George Erhard - he owned a homestead outside of Happys Inn, Montana (east of Libby).To my knowledge, he emigrated from Germany around the turn of the 20th century, and met his wife in Ohio on his way West.
If this rings any bells, feel free to send me a note.