Poor Marion. She really was chopped liver.
Upon re-watching Picnic at Hanging Rock, I felt badly that no one really referred to Marion by name the way they did Miranda or even Miss McCraw. (Heck, Mrs. Appleyard had a little meltdown over Miss McCraw, but Marion got no love.) Everything was about Miranda - even the searchers called out for her by name, and Irma's schoolmates ask her "what happened to Miranda?" with nary a mention of Marion. I get that Miranda had that ethereal thing going on, but Marion was their classmate too.
Small thing, I know. Every time I watch this movie I notice something different. In this case, it was no one mentioning Marion.