Great Somerford is one of three Primitive Methodist chapels (along with Grittenham and Cleaverton Street ) listed in a note added by the Registrar to the 1851 Census of Places of Public Religious Worship on May 8th 1852.
These returns must have been missing from the first batch sent to the Census Office and have been prepared in May 1852 by the Registrar, although there is actually a return for Grittenham dated, as it should be, 31 March 1851.
The 1882 Primitive Methodist magazine contains a note of the opening of a new Primitive Methodist chapel at what it calls Somerford Magna, but tells us nothing more.
The chapel is still active in 2020. You can see a picture of the chapel on the Circuit website here.
Primitive Methodist magazine 1882 page 761