References, credits and links: 

[1]  Some site icons designed by Flaticon

[2]  Nyack Historical Society - www.nyackhistory.org 

[3]  Nyack Library - www.nyacklibray.org

[4]  Image of Upper Nyack Old Stone Church via http://explorerocklandny.com (link: https://bit.ly/31qlVaU )  

 - more coming soon ...