Here is a new map for understanding the historical path that Sunnyside’s tributary of Islais Creek once took through the neighborhood, a composite using color Sanborn maps from the Library of Congress and DavidRumsey.org from the early 1900s. Additional information for areas not covered by Sanborn from Joel Pomerantz’s Seep City project for mapping our city’s old waterways.
A culvert was installed from one side of Monterey to the other at about Edna Street in the 1910s. Part of the creek was contained in a box drain in the 100 block of Flood Ave (north side) about the same time. Other manipulations took place, until the City diverted the water that would have fed it into the sewer system, during the 1920s.
Looking east on Monterey Boulevard midway between Foerster and Gennessee. Strip of shops on right side all removed in early 1970s to build Safeway supermarket. Move slider to compare photographs. View larger here. Look at other comparison photographs here.
The intersection of Foerster and Joost is not just a street corner in Sunnyside, it’s the stormy tale of a family torn apart by the relentless greed of one uncle, Behrend Joost, and the quiet loyalty of his nephew, Constantine Foerster, which finally gave way under the pressure of it. Joost went down in a long spiral of lawsuits, but Foerster survived and prospered, saved by taking the terrible decision to break his bond to his uncle, and stake his future in the company of men of better judgment and ethics.
Constantine E.A. Foerster was a successful and industrious corporate attorney in late nineteenth-century San Francisco. At the age of sixteen, he got his start in the city working for his uncle, a scrappy, ill-mannered hardware dealer named Behrend Joost. For many years his fortunes were deeply entwined with this uncouth entrepreneur, including as the attorney for Joost’s project to build San Francisco’s first electric streetcar system. The property speculation project called Sunnyside went along with the streetcar, and Foerster was one of several officers in the company whose names remain on the streets there.