"National Register Information System".
National Register of Historic Places.
National Park Service.
March 13, 2009.

Susan and Omohundro (March 1995). "
National Register of Historic Places Registration: Clarkson-Knowles Cottage".
New York State Office of Parks, Recreation and Historic Preservation.
Archived from the original on 2012-10-04.
Retrieved 2010-01-01.
See also: "Accompanying 18 photos".
"National Register Information System". National Register of Historic Places. National Park Service. March 13, 2009.
Susan and Omohundro (March 1995). "National Register of Historic Places Registration: Clarkson-Knowles Cottage". New York State Office of Parks, Recreation and Historic Preservation. Archived from the original on 2012-10-04. Retrieved 2010-01-01. See also: "Accompanying 18 photos".
Clarkson-Knowles Cottage