Carol,
I'm hoping we have a connection. I have a Henry Schermerhorn born in Watertown, Jefferson county, NY. He is my "dead-end". He married twice: Mrianda Mattison and mary Colly/Amey. Your post is the first I've seen for Schermerhorns in Jefferson County. Would love to exchange info with you. Please contact me at kristytru@icloud.com

Kristy