In the Cornish family genealogy book, Amaziah appears only twice. The father was Lieut. Jabez Cornish. 1726. There is an article written on him in book. Married twice ... Dorothy Dibble, then Sarah Whiting. Amaziah was one of 8 children ... Shows no birthdate, but shows death around 1836. Married a Rebecca and lived in Coventry, NY. Shows one child Keziah. Do not know if anything here helps ....