Every now and again, a search brings up something new. Came across a blog called Wimmera... way back when, which has a series of photographs of railway stations from Great Western to Serviceton. Included were a couple of shots of Horsham, one dated in 1957, and another 1971. The following two are originally from John Sargent's 'Country Railway Stations Victoria' series of photo books.
Not a great deal had changed over the years, except the loco dock platform had gone by 1971, and loco power had changed. Also, a gum tree has been planted (in the second photo), which is still growing today. In another ten years, the Freightgate had been built, and the signal box, plus refreshment service rooms behind had gone.