Collection ID: DE-001

Collection context


deClercq Family, Kingsbury Family, Mather Family
The deClercq Family Papers contain correspondence, land papers, documents, and photographs of the deClercq Family and their direct descendants, The Kingsbury and The Mather Families.
1 manuscript box and 0.42 linear feet
English French


Scope and Content:

The deClercq Family Papers are comprised of correspondence of the deClercq, Kingsbury, and Mathers Family, along with documents, photographs, portraits, and genealogy. This also includes land documents and a last will and testament, however, they only apply to The Kingsbury Family.

The correspondence within the collection dates 1799-1878 and is only between family members of the deClerq Family and the Kingsbury Family.

NOTE: Mary Ledyard was referred to as "Polly" numerous times in the deClercq correspondence. This was a reference to her twin, Polly Ledyard, who died as an infant. It should also be noted that Elizabeth Billings, the Ledyard children's mother, was referred to as "Bridget" in correspondence.

Biographical / Historical:

Hendrik deClercq was born in Amsterdam, Holland on October 30th, 1776. He was sent to America with his cousin, Mr. Huydecooper in 1793. Upon arriving in New York, New York, Hendrik deClerq traveled to Cazenovia and was placed in the care of John Lincklaen, who was a friend of The deClercq Family. Hendrik deClercq helped John Lincklaen with the land he acquired for The Holland Land Company (Shaw, 77-200).

In 1797, Hendrik deClercq met Mary Ledyard and on February 10th, 1799, they were married. They had 10 children: Peter deClercq, Youngs Ledyard deClercq, Charles Augustus deClercq, Mary Forman deClercq, Jonathan Forman deClercq, Elizabeth deClercq, Hendrick deClercq, Julia deClercq, Rebecca deClercq, and Louisa deClercq (Shaw, 77-200).

Julia deClercq married John Flavel Kingsbury in 1848 and had two daughters, Gertrude and Mary Louise Kingsbury (Shaw, 77-200).

Mary Louise Kingsbury married Eli Selden Mather on August 15th, 1865. Her sister, Gertrude Kingsbury, married Justin C. Cushing on September 6th, 1877 (Shaw, 77-200).

Biographical history was taken from the book, "The Ledyard Family in America" by Cass Ledyard Shaw.

Acquisition information:
The deClercq Family Papers were donated by Douglas L. Mather on March 22nd, 2004.

The deClercq Family Collection is arranged by the subject of each file.

Rules or conventions:
Describing Archives: a Content Standard



The deClercq Family Papers is open to public research. The Lorenzo State Historic Site archives are open to researchers by appointment only. Please call 315-655-3200 to set up your appointment.


Copyright is held by The New York State Office of Parks, Recreation, and Historical Preservation. Copyright in other papers in the collection may be held by their authors, or the authors' heirs or assigns. Researchers must obtain the written permission of the holder(s) of copyright and the Lorenzo State Historic Site archives before publishing quotations from materials in the collection.