In addition to recording meticulous details in the silhouettes he created, August Edouart also kept a folio of duplicates recording the cuttings for over 100,000 sitters during his twenty-four year career. He was traveling in the fall of 1849 on the American Ship Oneida, which was wrecked off the coast of England. Only a few of the l00 duplicate books could be saved. The only American Duplicate Book which named and dated many prominent families who were member of the Society of Friends was ultimately acquired by the Friends Historical Library of Swarthmore College.
Duplicates of Mrs. Sarah Pennock (74 years old in 1843), dated May 22, 1842, along with Miss Isabella L. Pennock May 22, 1843 are listed on page 149 of the Quaker Folio along with some other member of the Pennock family which were most likely included in other images. For the full folio see Helen and Nel Laughon, August Edouart: A Quaker Album (Richmond, Virgina, 1987).