Looking for sources for John Merrill Merrill-1247 and his wife Katherine John. John has a date of death of 28 Jan 1452 and his wife is said to have died on 13 Dec 1451.
Merrill-106 his descendant has a death of death of 29 Jan 1552 and his wife Katherine John died on 13 Dec 1551.
This seems a remarkable coincidence and I suspect the early Merrill and his wife are a conflation with Merrill-106.
How best to sort these people out?