Father appears to be Abraham Salter. Aaron baptised Broadclyst 21 April 1783.
Mother Mary Mabey married 9 Sep 1773.
Aaron's wife Susanna Trickey? married 28 Jun 1810 Silverton.
George baptised Broadclyst 3 Aug 1835.
For Pitt Farm I think you'd have to consult Devon Records Office.
Devon Heritage Services
Great Moor House
EX2 7NL firstname.lastname@example.org