At Roseworthy there was once a holy well and chapel of the saint, which was also the site of the most splendid Celtic cross of Cornwall (now at Lanherne).

The advowson of Gwinear belonged to the manor of Drannack and was sold in 1311 by the Bevilles to Sir Richard de Stapeldon (d.1326) in trust for his brother's foundation at Oxford, later Exeter College.

The church was lit with Hesperus lamps provided by Jones and Wallis of Birmingham.

The Rural Dean, Revd F Hockin of Phillack provided a low screen to separate the Arundel chapel.

The opening recital was given by Hubert Stanley Middleton, organist of Truro Cathedral, on 14 January 1925.