Bay seniors may have correctly guessed that Cow Hollow once held cows. They grazed at farmer Gough’s dairy. Surprisingly, considering the city that has swarmed up around it, his home is still there. It is the Octagon House which you have driven by a million times. It was built in 1861 and saved in 1952 by the California Historical Society for $1. You can visit here on the second Sunday and the 2nd and fourth Thursdays noon to 3. Currently it is the home of the Colonial Dames of America and contains Federalist furnishings. The garden is a formal park. By the way, Farmer Gough named the street around the corner for his sister, Octavia.