6th and Main Station on Flickr.
circa 1942
Cars 379 and 4516 at the 6th & Main Streets elevated station during World War II. Number 379 is from the Southern Pacific electric commuter system called “Interurban Electric Railway” which served many cities in the San Francisco eastbay area. Car 4516 was ex-Northwestern Pacific Railway, another electric suburban comuter operation in Marin County, north of San Francisco. Both cars were used during World War II to serve the Calship shipyard on Terminal Island, and were owned by the United States Maritime Commission. In the later (postwar) 1940s, these cars were rebuilt into (NWP cars) 300 and (IER cars) 400 series “Blimps,” many of which closed out the last Pacific Electric Railway “Red Car” line to Long Beach in 1961.