The 'whos' of the list may be easy to figure out but the nature of the order may take some more thought.
The cache is located at -
S Tom.B Pertwee * Colin.B Eccleston . Pertwee McGann Eccleston
E Hartnell Tom.B Davison * Hartnell Tom.B . Eccleston Tom.B Troughton
The cache is a small with room for swaps, travelbugs, etc.