138 Squadron Sortie Codes

I am currently trying to ascertain what the actual ‘Coded’ operations were in 138 Squadron during 1944. I have a logbook of a pilot that flew with this Squadron dropping agents or supplies and it only gives the Op name and comments such as ‘Somewhere in France/ Poland/ Germany etc. The ORB’s don’t give much more help. Can anyone suggest a website/book that may give a fuller description,such as code name of the agent or where exactly he was dropped etc. I am looking for details of these codes in particular:- Wheelwright 30, Grebe, Bundle, Trainer 96, Rigi/Tybalt, Posse, Bob 18, Parson 17, Curlew (to Norway,) Does anyone know if Hendon might be able to help?Any help would be most appreciated.