Daily Freeman (Kingston, New York). Clippings found on Ancestry.com.
Haviland-Heidgerd Historical Collection, Elting Memorial Library, New Paltz, New York
Heidgerd, William. The American Descendants of ChrÃ©tien Du Bois of Wicres, France. (DuBois Family Association, Inc. 1998)
Historic Huguenot Street Permanent Collection and Archives, New Paltz, New York
Ossining Historical Society Museum, Ossining, New York
"U.S., School Yearbooks, 1880-2012"; School Name: Ossining School for Girls; Year: 1916. Ancestry.com