My own branch are farming in South Devon and all go back to john savery who married Elizabeth potbury.His father was John who married Ann Searle and his father was William who married Elizabeth Elliott.
From williams grave stone at staverton we can Estimate a DOB of 1773 which Corresponds with a Baptism at Ipplepen to a william,son of "william" and Susanna.We think this incorrect and should read John and Susanna(nickols) who married there in 1770.
Whether it is william(1742) or john(1744) they were both baptised at Ipplepen,sons of William and Joan Shepherd who were married there in 1739.
Susanna appears to remarry a William Phillips in 1785 and have more children at Bulland in Staverton.I need to see the original.
The tree then heads for Rattery then Totnes but no Servington in our line.The two servington Daughters married two savery cousins(stephen+Johan and Christopher+Freedaswede)But the servington(1656) in the original post is related to both - Katherine lee was the grand daughter of Katherine savery(Daughter of Christopher and Freedaswede)C.J