Hi, not sure if this listing is still active, its been a long time but,, as far as i know through research Isabella Glennie married JOHN Riach and not ALEXANDER Riach. For some reason on young Isabella`s marraige cert(to William Peter)it states her father as Alexander. Isabella Glennie and John Riach were my great,great grandparents. maybe this will be of some help to you,or maybe you have this info now. kind regards Flora.