Right, been there and got the requested pictures.
We have three types. From links posted here and your advice I think I've ID'd at least two of them. The presence of the River style makes sense as we're in quite a soggy area of the country, and we had lots of waterways etc.
All have very similar grips, so we can conclude mid-1800's style.
We've also got an Officers sword made by Wilkinson, and its got a serial. But the only way to get the details seems to be lob some chap £20. Which maybe a bit out of our museums capabilities (and I'm an unemployed bum at the moment).
We also have a nice collection of Sticks, Perp, Whacking, for the use of: