The only thing I can suggest if you want to find out who wrote it is to work through the various magazines (Railway Magazine, Railway World, Trains Illustrated, etc.) and the railway club journals, as well as their annuals. Depending on the style, it might be for a more general publication, not a railway one; there is rather a wide choice here. Don’t make do with just scanning the titles: you will need to read a bit of all promising articles in case the editor has renamed it or chopped it about. Over to you.