Richard Wynkoop, Schuremans, of New Jersey (New York: Knickerbocker Press, 1902), 95; Christian Intelligencer of the Dutch Reformed Church, October 29, 1836.
Jessica Skwire Routhier, “Fellow Journeyers Walt Whitman and Jesse Talbot: Painting, Poetry, and Puffery in 1850s New York.” Walt Whitman Quarterly Review 38 (2020): 9. https://doi.org/10.13008/0737-0679.2386.
Wendy J[ean]. Katz, “Previously Undocumented Art Criticism by Walt Whitman.” Walt Whitman Quarterly Review 32 (2015): 215–29. doi:10.13008/0737-0679.2171. The articles are “Encampment of the Caravan,” Evening Post, April 21, 1851; “An Hour at the Academy of Design,” New York Sunday Dispatch, April 25, 1852; and “Talbot’s Pictures,” American Phrenological Journal, February 1853. An earlier article in the American Phrenological Journal 15, no. 1 (January 1852), entitled “Talbot, the Painter,” also mentions the Encampment painting and may be by Whitman.
Walt Whitman to William D. O’Connor, September 28, 1869, The Charles E. Feinberg Collection of the Papers of Walt Whitman, 1839–1919, Library of Congress, Washington, D.C., available on the Walt Whitman Archive (www.whitmanarchive.org): https://whitmanarchive.org/biography/correspondence/tei/loc.01689.html[dead link].