I would agree with Keith on the pronuciation. I grew up in University Park, my mother was born there on S. St. Paul in 1906, and my grandmother moved there in the 1890s and built 2 houses in the 2000 block of S. St. Paul.
My first memories of the C&S branch are from about 1943, and later we rode the caboose to the end of the line as kids during the Korean War, and swiped cement from the cars on the unloading spur when the Valley Highway was built so we could build a minature town in our back yard. All of the cement for the Valley Highway was unloaded at the end of S. Cook/Adams Streets for the original construction of the highway all the way to Castle Rock. That little branch once enjoyed significant freight business and ran 6 days a week, all steam except for the Saturday run that was often diesel powered. I watched hundreds of trains on that line over the years. Even the annual weed burning train had a steam engine to pull it. It was often used for student trips for new crew members as we often saw engines run light on the branch with no cars, and I assume that was the purpose.