In 1688, his wife's uncle, Lord Dover selected Davers as the court candidate for Bury St Edmunds.

[1] In 1689, Davers defeated John Hervey to be elected as the Member of Parliament for Bury St Edmunds on the Tory interest.

[4] In the following Convention Parliament, Davers voted with the Jacobite efforts to declare that throne was not vacant following the flight of James II to France.

In 1721, his name was included on a list of leading politicians and likely Jacobite sympathisers sent to James Francis Edward Stuart.

By this marriage he acquired in 1703 one-fifth of the Rushbrooke Hall estate, of which he purchased the other parts from his sister-in-law, Hon.

[2] He sold the estate of Rougham between 1705 and 1710 to his son in law, Clement Corrance and made Rushbrooke the family's principle seat.