Is anyone researching the Heards of Beaford?

I'm particularly interested in Sarah Heard born about 1793 and George Heard born in early 1700's.

I'm also interested in information on the following:

MARY COUCH married about 1765 to Richard Garnsey

RICHARD GARNSEY born about 1736

SARAH MADGE born about 1792 married Edward Garnsey

These would have been in areas such as Beaford, Tawstock, St Giles in the Wood.

Willing to share all info I have.