Tessie
As yet I have not been able to establish a link between the Ody family in Lydiard Tregoze/Lydiard Millicent/Purton which includes Noah Ody, and the Ody families in Malmesbury and Christian Malford.
The first indication of the Ody family in Lydiard Tregoze/Lydiard Millicent/Purton is in 1742, hence they have probably moved there from somewhere nearby. Christian Malford is a possible origin as is Wroughton.
Steve