Map and Googleganger

I thought this map of US surnames was interesting. It shows the most common names in different parts of the country.

Mine is not a common name. In fact, there is only one other Ellen Golla who turns up prominently in searches. My Googleganger appears, like me, to be a Golla by marriage, be close in age, have the same middle initial, and live in California (she at the opposite end of the state).

Ellen J. Golla, if you've stumbled upon this, feel free to get in touch. I imagine that you have also been asked before if you are "the Southern or Northern California one."