Iantha Schultz Cantine (1864-1951) extensively researched the genealogy of the Eastgate family. Shortly before her death, she wrote a book entitled The Descendants of John Eastgate, 1791-1837 in the United States, using information which she gathered from family members, historic family documents, and her own recollection.
Intending to accompany her aunt's book with further historical documentation, in 1958 Katherine E. Schultz arranged dozens of mostly 19th century family letters into a collection. She also created a volume of corresponding transcriptions and family photographs. This is the material that comprises the Eastgate Family Papers.
From the guide to the Eastgate family papers, 1848-1913, 1958, (The New York Public Library. Manuscripts and Archives Division.)
