I am not sure if your David matches mine or not. All I have found out about my COULTERs is my grandmother Margaret COULTER, her parents were David COULTER Jr and Isabella COULTER. David jr. was born in Ireland (I do not know where) 25 Jan 1861 and Isabella Emiline COULTER (her maiden name was also COULTER) was born in Ontario. Isabella's parents were James COULTER born about 1820 in Ireland and Elizabeth (last name unknown) she was also born in Ireland. I do not have the names of David Coulter's parents other than his father was also a David. Margaret COULTER had a brother John James COULTER born in Manitoba. If I match up my David with yours I will let you know. Thank you.