I think
Horatio is much better than
Horace :)
Tarka is the name of an otter from a children's book:
http://en.wikipedia.org/wiki/Tarka_the_Otter This is the first time I've actually heard the name on humans, though!
These
BAs are from the upper-middle / upper classes in the
UK and they tend to use two or even three middle names - not sure why, maybe they're copying royalty or something!