In addition other ancestors John Harris and his wife Mary Rodda migrated
from Crowan to South Wales with their four children circa 1845.  Mary's
relative Thomas Rodda (brother?) lived in Wales also, and is mentioned in
the family bible.  But I am not sure which Harrises or Roddas the couple
came from.

The Lowrys were dyers in Truro, the father married a farmer's daughter from
Bodmin, while the son married the eldest daughter of Rev'd Thomas Martin
(1780-1866), a Methodist minister.

I am 25 living in London and think I have retired now from researching my
family tree.  So please think carefully before getting me hooked on a whole
new branch!  Would be interested to hear from anybody my age who is
knowledgeable about family history.