Editor’s note: One hundred years ago—April 1, 1921 (no fooling!)—an old name appeared anew on the San Francisco scene: Market Street Railway Company. There had already been four transit companies bearing that name, dating back to 1860. This incarnation of the name came after a financial reorganization of the city’s dominant transit company, United Railroads, which with its predecessor had consolidated numerous private operators of cable cars, horsecars, and electric streetcars in the preceding 30 years.
