This is a bit wierd replying to a message posted over 6 years ago, but I've only just dicovered this site, so here goes.
My name is Peter Rodda and I was born in Penzance, Cornwall.For the past 12 months I've been tracing my family history.My grandfather was Sampson Rodda, his father was William Rodda and his father was John Rodda, who I think married Elizabeth Berryman in 1805. His father was also John Rodda.
I'm not sure if these are the same people as you mentioned in your message on 14th March 2001. Most of my family seem to have been butchers in Penzance up to the latter part of the 19th century. Were your Rodda family butchers or did they have another trade that they followed?