On this page (https://dbase1.lapl.org/webpics/calindex/documents/10/520220.pdf) you will find three captioned photographs. Let me draw your attention to the one of the Railroad workers. It’s caption reads: “Burly roustabouts strike an arrogant pose during the laying of Los Angeles and Pacific tracks during the 1890s in Highland Park. The area was already known as a desirable suburb of Los Angeles and attracted families seeking contentment and culture.”
The page itself is a newspaper clipping dated 7/6/1975.