American Tide Mill buildings still extant:

 choose from the list in the menu bar at the left

 Slade Mill, Revere, MA

 Souther Tide Mill, Quincy, MA

 Saddle Rock-Eldridge-Udall Mill, Great Neck, Long Island, NY

 Van-Wyck Lefferts Mill, Huntington, Long Island, NY

 Poplar Grove Mill, Mobjack Bay, VA