Scott,
For Caudron Aerodrome, I found this:
http://www.btinternet.com/~kaynes/Wakebook/ch12.htm
but it is in France, not Scotland.
Regarding Alloa - there is a website going into basic details of all UK airfiels/aerodromes, stuff like when operational, and map references etc. Unfortunately, for Alloa, all it says is "Closed".
Mike