Accessing a list would be tricky, but there's probably one in an archive somewhere. If you email Southeastern directly, they may be able to send some old timetables that show the service frequencies and stopping patterns, it's worth a shot. You can discard Metro services really, as they saw no change, although some saw slight improvement, so this is only considering Mainline. Unfortunately I can't remember the entire timetables pre-HS1 (it's been 5 years now), but what I can remember...
Pre-2009 Chatham main line:
Victoria to Ramsgate/Dover Priory (splitting at Faversham) - 2tph
- calling at Bromley South, Rochester, Chatham, Gillingham, Rainham, Sittingbourne, Faversham. Split to Ramsgate train and Dover train. For Ramsgate, 1tph would do all stations to Ramsgate, whilst 1tph would do Whitstable, Herne Bay, Margate, Broadstairs and Ramsgate (I think). For Dover, 1tph would do all stations to Dover Priory, whilst 1tph would do Canterbury East and Dover Priory.
Victoria to Faversham - 2tph
- calling at Bromley South, St Mary Cray, Swanley, Farningham Road, Longfield, Meopham, Sole Street, Rochester, Chatham, Gillingham, Rainham, Newington, Sittingbourne, Teynham and Faversham.
Current Chatham main line (changes in Bold):
Victoria to Ramsgate/Dover Priory (splitting at Faversham) - 2tph
- calling at Bromley South, Longfield, Meopham, Rochester, Chatham, Gillingham, Rainham, Newington (1tph), Sittingbourne, Teynham (1pth), Faversham. Split to Ramsgate train and Dover train. For Ramsgate, 1tph would do all stations to Ramsgate, whilst 1tph would do Whitstable, Herne Bay, Birchington on Sea, Margate, Broadstairs and Ramsgate (I think). For Dover, 1tph would do all stations to Dover Priory, whilst 1tph would do Canterbury East and Dover Priory.
Victoria to Gillingham - 1tph
- calling at Bromley South, St Mary Cray, Swanley, Farningham Road, Longfield, Meopham, Sole Street, Rochester, Chatham and Gillingham.
St Pancras International to Faversham - 2tph
- calling at Stratford International, Ebbsfleet International, Gravesend, Strood, Rochester, Chatham, Gillingham, Rainham, Sittingbourne and Faversham.
It's worth noting though that December 2014 timetable change will be a big change and there will be big alterations to that mentioned above. The Victoria to Ramsgate/Dover Priory will no longer run as a combined service. Instead, 1tph will run to Ramsgate and 1tph will run to Dover Priory. To replace the lost services, the 1tph Victoria to Gillingham will be extended to Dover Prior and the St Pancras International to Faversham will be extended to Ramsgate as part of a circuit High Speed service.
Someone else should be able to provide more detail about the services pre-High Speed from Charing Cross to Maidstone East, Ashford, Margate, Rasmgate and Dover via the SEML.