"2. Richard Ely, second son of Richard, the emigrant, has but a meagre record. He was born in 1656, probably in Plymouth, where Col. Chester found the record of his baptism, June 19, 1657."
There are apparently no sources available to conform (or refute) the birth and death dates given in this memorial. The gravestone image indicates that the stone was not placed at the time of his death but some considerable time later.