Originally part of Rancho San Miguel, the West of Twin Peaks district was among the last to be developed in San Francisco. Behrend Joost, using the fortune he made to start dredging the Panama Canal, built a railway in 1891 to bring people out to his "cr]me de la cr]me" subdivision next to the forest planted by Comstock Lode millionaire Adolph Sutro. After the streetcar tunnel was bored through Twin Peaks in 1918, A. S. Baldwin planned neighborhoods on Sutro's estate around Mount Davidson. With noted architects and engineers, Baldwin created "residential parks" with well-built Craftsman, art...