This archaelogical dig was the subject if a paper by T W Pottef and R D Andrew's published in the the Antiquaries Journal volume 74. It is also available on line from here (however there is a charge, unless you have a login from an institution which subscribes to Cambridge Core). The paper reports excavations in 1977 and 1978 at the chapel and adjoining cemetery of St Patrick's, Heysham, and an architectural survey of the nearby church of St Peter's. The chapel initially comprised a single-celled, stone-built structure, plastered inside and out. Associated with it were pieces of painted plaster, two bearing letters, and, in all probability, a stone carved with a bird's head, perhaps of late seventh- to late eighth-century date. The chapel was subsequently enlarged. One burial included a bone comb of Anglo-Scandinavian type, and calibrated radiocarbon dates for three skeletons range between AD 960 and 1185.

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