Name, latest year could be born of bef 1777, from the “Devis Family Tree” kindly shared by Julie Bourke (nee McColl) received in the post on 3 May 2017. This information is based on original research, including that of Wills, by Linda Burge and Julie Bourke. Linda is the great-great-granddaughter of Emma Frances Devis b. 1814. Julie is the great-great-granddaughter of Emma Frances Devis. Brian of nzolivers.com is a x3-great grandson of Emma Frances Devis.
Brian of nzolivers.com says must of been born well before 1777.