Thornton-le-Moor is a small village in the West Lindsey district of Lincolnshire 16 miles N of Lincoln and 12 miles SE of Scunthorpe, on the western edge of the Lincolnshire Wolds. The church is a small ironstone rubble building at the western end of the village. It is primarily 13thc. and consists of a nave with clerestory, chancel and S porch. There was also a N aisle as demonstrated by the 13thc. columns and arches in the N wall of the nave. The chancel was rebuilt and the S porch added in 1871 restoration. But there are earlier traces of an 11thc. blocked doorway to the E of the S doorway and Romanesque elements consist of an exterior corbel-table at the SW end of the nave wall, a S doorway, and some reset corbels in the nave walls inside.

A holding of 2 bovates and another of 11 bovates were owned by Roger de Poitou in 1086. The smaller holding was held by Grimbald in 1066. Also Alwine held 2 carucates and 6 bovates of ploughland here before the Conquest, land that was held by William de Percy in 1086.

The church was recorded as a chapelry in the middle ages by Arnold-Forster.

Pevsner dates the S doorway to the 1st half of the 12thc. but does not note the corbels, They are noted (both inside and out) in the List Description where a 12thc date is offered.