I am not carrying out any active research into the Cornish Caddy lines, but
I have extracted the birth, marriage and death entries of all Caddys from
the General Register Office indexes. I cannot find a Thomas Caddy with a
birth registered in Cornwall in 1845, but these are around that time (in
each case, the date shown being the quarter in which the birth was
registered):
Mar 1843 Thomas Henry Caddy, Penzance
Jun 1844 Thomas Trevethick Caddy, Penzance
Dec 1844 Thomas Caddy, Redruth
Sep 1846 Thomas Gluyas Caddy, Helston IX 126
I regret that I did not get the volume and page references for most of the
Cornish entries.
I could look up deaths for Thomas and Elizabeth Caddy, but their names are
so common that it would not serve much purpose unless there were some
reason to believe that they died in England and Wales around a particular
date.
Jeremy Wilkes