No.1 (TL222090) - filled chalkwell
Nos.2-6 - 5 chalkwells recorded, possibly in grid square TL2107
No.7 - chalkwell recorded, possibly in grid square TL2208
“Caves & Tunnels in SE England Part 7”, Chelsea Speleological Society page 26
“Caves & Tunnels in SE England Part 8”, Chelsea Speleological Society page 27