Edmonds E A & B J Williams.

E. A. Edmonds and B. J. Williams were geologists with the British Geological Survey who co-authored several memoirs on the geology of southwest England, including 'Geology of the country around Taunton and the Quantock Hills' (1985) and 'Geology of the country around Bideford and Lundy Island' (1979). B. J. Williams, identified as Brian John Williams, collaborated with Edmonds on multiple regional geological surveys covering areas like Ilfracombe, Barnstaple, Bude, and Bradworthy.[1][2][3][7][8]