他的书 Primitive Industry: Illustrations of the Hand-work in Stone, Bone, and Clay of the Native Races of the Northern Atlantic Seaboard of America (Salem, 1881) 详细介绍了特拉华河谷地区冰川前期人类存在的证据, 是对美国考古学的宝贵贡献。 他常在《美国博物学家》、《科学》、《自然》、《科学新闻》和《科技新时代》发文。 他还出版了许多户外观察的书,如 A Naturalist's Rambles about Home (1884).
著书
Catalogue of Vertebrate Animals of New Jersey (1868 - in Geology of New Jersey, ed. George H. Cook)
The Stone Age in New Jersey (1876)
Primitive Industry: or Illustrations of the Handiwork, in Stone, Bone and Clay, of the Native Races of the Northern Atlantic Seaboard of America (1881)
The Paleolithic Implements of the Valley of the Delaware (1881)
Upland and Meadow (1886)
Waste Land Wanderings (1887)
Outings at Odd Times (1890)
Recent Archaeological Explorations in the Valley of the Delaware (1892)
A Naturalists' Rambles About Home (1894 - 2nd Edition)
The Birds About Us (1894)
Travels in a Tree-Top (1894)
A Colonial Wooing (1895)
Notes of the Night And Other Outdoor Sketches (1896)
^Leonard, John William; Marquis, Albert Nelson (编), Who's who in America5, Chicago: Marquis Who's Who, Incorporated: 3, 1908 [2018-01-06], (原始内容存档于2020-07-27).
^Charles C. Mann. 1491: New Revelations of the Americas Before Columbus. Knopf (2005) ISBN1-4000-3205-9. pp 160–163.
^Herbert C. Kraft. The Lenape. NJ Historical Society (1986) ISBN9780911020144. p 28.