Hi Sally, Ellenburg is in Clinton County, NY. This county is in the very upper right hand corner of the state and borders on the province of Quebec. Ellenburg is west of Lake Champlain on highway 11 at the very top of the state. In the marriage book I see one Theophile Dame married Julie Tremblay on Sept. 12, 1853, witnesses were Pierre Gladu and Felix Co...... Regards, Andree