But local historian John Chaple used 19th Century Ordinance Survey maps to pinpoint its location – behind the home of 64-year-old Noreen Morrin.
"I managed to persuade Noreen to let me dig up her lawn and filled several huge bags with soil. Luckily, she was interested in local history too.
He added: "I was only about two feet out, which shows the incredible accuracy of the maps. Four or five feet under the lawn there was a big void, which was exciting to find.
"It is possible the well has gone dry but I would be surprised if there wasn't water down there. It will be expensive to excavate but I would love to find out."
Mrs Morrin, a former midwife, said: "It is amazing to have such a piece of ancient history in my garden."
Some history books have claimed that "camber"' meant crooked and that water from the Camber Well could cure "crippled or crooked people".
Another theory is that the well was named after Prince Camber, son of Brutus of Troy who according to legend was the founder of London.