Wittenham, Long, a parish, with a village, in Berks, on the Thames, 2 miles SE from Culham station on the G.W.R., and 5 NW of Wallingford. It has a post office under Abingdon; money order office, Dorchester; telegraph office, Clifton Hampden. Acreage, 2275; population, 477. There is a parish council consisting of five members. The manor belongs to St John's College, Oxford. The Manor House is a chief residence. An ancient cross, originally erected in Saxon times, which stands in the village, has been restored, and there are also remains of a Saxon burial-place. Some Roman remains were found in 1893. The living is a vicarage in the diocese of Oxford. Patron, Exeter College, Oxford. The church is an ancient building of stone in mixed styles, from Norman to Elizabethan, consisting of chancel, nave, aisles, S porch, and an embattled western tower. There is a Primitive Methodist chapel.
The Visitations of Berkshire 1532, 1566, and 1665-6 is available online.