Mr Tedder in the BBC adaptation Swallows and Amazons Forever!
Police Constable Tedder, usually referred to as Mr Tedder is the police constable at Horning, where he lives next to the staithe (a Norfolk term for a quay).
Mt Tedder is a keen gardener, so after the altercation with the Hullabaloos at the Horning Staithe Mrs Barrable changes the subject by discussing gardening with him (CC8). His marrow won the silver prize at an agricultural show (BS10).