The name of Larkspur comes from "Lark" as in having fun or doing something enjoyable mixed with "Spur" as in a set of sleepers that come off the main line sleepers, with rails naturally, where cars or engines or brake vans can be placed. Hence Larkspur. A place where passenger cars could be deposited even though it didn't have a carriage shed and they could detrain and have a "Lark" then go back to the "spur" and get on board the carriages and ride back to San Francisco, singing songs of merriment or maybe reciting poetry. Lots of shagging went on at Larkspur naturally which is why the next town over, perhaps, was christened "Corte Madera" which is short for "cut the cord" or in plain english : "back alley abortion".

I bet you so-called NWP Experts didn't know that did you?

NWP 2472 rusted on the sleepers on the Larkspur Spur but let me tell you it was no Lark. Sad dark days there. I saw it all from the freeway.