Final settlement of estate of grandfather John Smith names surviving children of deceased son Dean Smith: "Dean, Heman, Aseph, sons, and Merriam a daughter". Esther born Jul 1721 after parents marriage Oct 1720 and must be oldest child. Dean appears to be oldest son, but we cannot tell where Merriam fits into the order. Dean married 1745, so to be of legal age, he was born by 1724, so he probably followed Esther, so probably about 1723.