Does anyone know what locos and railcars commonly ran on the line. ........ Also, what other rail magazines had articles in them about this line? Issue numbers???
The October '99 & Nov'99 issues of "Transit Australia" have lengthy articles on history of the Brighton line operations. The articles mainly discuss snapshots of the line operations in ~1960 & ~2000 & mainly covers the suburban section, which is not really what you're interested in, but are references & useful info on the Willunga trains (- or train, there was only one per day)
If you PM me your postal address, I can mail you the 2 articles - I still have those issues of TA. They are very interesting, but I cannot scan & post them here for copyright reasons.
Author of these articles, and editor of Transit Australia, is Ian Hammond, a S.A. resident. You may be able to get useful info from him for your book - I don't know him personally, but he seems very knowledgable. I will include I.H's e-mail with the articles if you like.