Marshall Pinckney Wilder (politician) Marshall Pickney Wilder (September 22, 1798 – December 16, 1886) was a Massachusetts merchant, amateur horticulturalist, and politician who served in the Massachusetts House of Representatives, on the Massachusetts Governor's Council as a member and President of, the Massachusetts Senate. As a pomologist he was founder (1848) and longtime president of the American Pomological Society. See also 71st Massachusetts General Court (1850) References External links Marshall P. Wilder collection at the University of Massachusetts Archives.