Can you help to identify these frames, bikes or parts?

So possibly SL or SLX. Can you finger her seat tube from the bottom (bracket) and feel for light ridges? That'll indicate SLX (or possibly the later TSX though I can't remember the seatpost size).

I agree that it looks like there should be a 700c on the back; the clearances would likely be much tighter.

Thanks for the info I'll shove my finger in her later today and have a good feel around. I tried putting a 700c wheel on back when I found it but there's no way it will fit (even without a tire). It seems weird with 650c f&r and still no luck with info from the frame no.