I will speak to my sister later today. She also lives in the Roseland area. I know she uses a farrier from just outside the area but I can't recall his name. I'll get back to you.
He lives in porthleven (Keith that is). Just a couple of streets away from me. He is a great farrier, I used him for about 11 years, but he is a pain to get hold of or to get to arrive on time, you have to be verrrrrry patient, but he is excellent at what he does